• Added "Dante device exclusion list" dialog. This allows exclusion of specific Dante devices to NControl. NControl must be restarted for the new exclusion to take effect.
• Added "Identify" function to Menu.
• Added MCU Pro commands: Function key F7 is GROUP A Mute; Alt+F7 is GROUP A Dim.
• Modified MCU Pro sliders so any value -70.0dB or lower is muted.
• MCU Pro commands now take action on key down instead of key up. This allows better integration with the Elgato Stream Deck + with the Midi plugin which only sends key down commands.
• Dolby ATMOS scenes can now assign channel names from newer SonarWorks .TXT files.
• Dolby ATMOS Setup page can now load preset .BIN files from Sonarworks Version 5.10 and up.
• Copy and Paste (Ctrl+C / Ctrl+V) now implemented for output volume and routing. First select a specific output pair and press Ctrl+C (Cmd+C on Macintosh). This copies the output controls and all associated source channel controls to the clipboard. Next, select a different output pair and press Ctrl+V (Cmd+V on Macintosh). This pastes the volume and routing to the newly selected output pair. A specific use case for this is if powered monitors are on Out 1+2, the volume and routing of Out 1+2 can be copied to the Phones so the Phones will have exactly the same feed as the powered monitors.
• Added "Check for updates" to Menu > Advanced. If a newer version of NControl is available, a popup will inform the user of the newer version and ask if the user wants to download it. If the user presses "Ignore", the popup will no longer occur until the user selects Menu > Advanced > Check for updates.

• Channel Bass Management settings are now preserved when loading a preset, since SonarWorks presets do not contain bass management settings.
• Added "ATMOS Scene" section with "ATMOS Enable" button to adapter panel. This is a duplicate of the ATMOS Enable switch within the Dolby ATMOS setup page. This serves as a reminder that the ATMOS Scene is enabled since normal NControl routing is overridden by the Dolby ATMOS setup page. Holding down the "ALT" key while pressing the ATMOS Enable button will immediately launch the Dolby ATMOS setup page (Ctrl+A [Windows] / Cmd+A [Mac] will also launch the Dolby ATMOS setup page).

• Changed Load REW Preset dialog so that the "Open Files" button is disabled until the user has actually assigned a file to a speaker.

• Fixed issue where Group selection and volume was not restored from USB connected Aurora(n).
• Fixed issue where Monitor Out or Phones would not save or restore properly from ATMOS Scenes when selected as the output.

• Fixed issue introduced with 1.0.10.1 where Sonarworks import of 2.0 (Stereo) .TXT would cause a crash.
• Disable LFE settings when Sub mix is set to Sat Only.

• Fixed issue where Sonarworks import of 7.1.4 .TXT would select 7.1 instead of 7.1.4.

• Changed to Dante API Version 4.6.2.5.
• Added support for Dolby ATMOS room correction.
• Fixed issue where trim for TRS In 1+2 on LM-A24 may not switch properly depending on the configuration of the Aurora(n).
• Fixed issue where selecting certain higher numbered outputs as the rotary control volume channel might cause NControl to not open properly upon quit / reopen.
• Added "Allow clock change if active" to Advanced menu.

• Added support for macOS AudioDriverKit driver.
• Fixed issue with 8-channel Aurora(n) with LT-USB and LM-A24 or LM-A04 where LT-USB would always show 8-channel mode instead of 16.

• Meter data are ignored for the first 125ms upon startup to avoid showing a meter deflection when none exists from hardware.
• Now using JUCE 7 library.
• Macintosh version now supports Apple Silicon (M1) Dante connection method.
• Macintosh version now has OpenGL disabled by default since JUCE 7 now supports Metal rendering.
• Macintosh version now supports macOS 10.10 and up (the oldest version of the OS supported by the Audinate Dante library).
• F8 key now properly does Group Swap A/B for both Windows and Macintosh version.

• Fixed issue that may cause abnormal program termination when selecting an output, depending on the configuration of the Aurora(n).

• Added Play pan and volume controls for the first 12 outputs, Phones and the selected Monitor Out. Only available with Aurora(n) Firmware 1.25 and higher.
• Added Zoom levels of 50%, 66% and 80%. These values were selected because they are the inverse of 200%, 150% and 125% font scaling factors that may be applied by the operating system on high-DPI monitors.
• Added Output Select to scene storage. This allows the scene to remember which output is currently selected when the scene is saved so NControl can return to the exact same state.

• Added Pan law menu popup in Menu > Advanced. Only available with Aurora(n) Firmware 1.24 and higher.
• Added Swap A/B to Adapter panel when Group A+B Enable is set. This replicates the functionality of pressing the rotary encoder on the front panel of the Aurora(n) when on a meter page and Settings > RE click is set to Swap A/B. If Group B is disabled then the Swap A/B panel will be hidden. Only available with Aurora(n) Firmware 1.23 and higher.
• Updated to Dante 4.4 API. Please note that Audinate does not support Dante on Apple Silicon M1 based computers. Supports Big Sur on Intel.
• Fixed issue where the scribble strip may not recall properly when multiple Aurora(n)s are present in a single system.
• Fixed issue saving and restoring LSlot routing in scenes. PLEASE NOTE: Scenes previously saved with NControl will set the LSlot Record Source incorrectly. User must recall the old scene, manually set the LSlot Record Source then resave the scene to correct.

• Windows only release. Included with V2 Build 24d driver.
• Added Advanced > "ASIO Buffer Size" when Thunderbolt connection is detected.
• Added "Auto" to Advanced > Adapter Settings > Channel Mode for Hilo-TB; Hilo-TB3; Aurora(n)-TB; Aurora(n)-TB3. When unchecked, allows the user to control the number of channels presented to the operating system instead of reading the channel count from the device.
• Changed to WinRar 6.01 for self-extracting archiver to avoid false positive virus detection issues.

• macOS only release. Included with Build 59A driver.

• Added support for Group A and Group B master volumes (requires Firmware 1.23 or higher).
• Each output pair can only be assigned to Group A or Group B or neither, but not both.
• An example setup is: The end user assigns all of the line outs to Group A and the digital outs to Group B, then there is a master for each set of outputs as a group.
• The group masters cannot be "Selected" like other outputs since there are no sources to route. It is possible to assign the rotary encoder to the group by "Control+Click" on the group title (just like all of the other output titles).
• When the LSlot Record Source dialog is up, the background now stays dimmed to show the dialog box is modal.
• When the Advanced > Adapter settings is up, the background now stays dimmed to show the dialog box is modal.
• Sample rate is displayed on the Adapter pane as "Not connected" when there is no connection to the Aurora(n) as there was no immediate indicator of the connection status without bringing up the connection menu.
• Added support for macOS 11 Big Sur and Apple Silicon. Please note that the Dante connection method is not supported on Big Sur or Apple Silicon due to limitations from Audinate.

• Fixed issue where NControl would exit when saving a scene where no "Quick Recall" scene was active.
• Made "Quick Recall" scene no longer active once a scene is opened or saved using "Open scene" or "Save scene" menu or command.
• Sample Rate, Sync Source and SynchroLock status are no longer saved with a scene, but are recalled if they are present in the scene file. This prevents unintended sample rate or sync source changes when recalling a scene.
• Added the ability to remove "Quick Recall" scenes. Hold down the Alt key and click on "Store scene". Text of the Store scene button will change to "Remove scene" and the Quick Recall scenes that are valid will blink. Click on the scene you wish to remove and the scene will be removed and the name will be reset to the default scene name. To cancel the Remove scene function, just click on the Remove scene button.
• Changed the extensions of the "Quick Recall" scenes from .xml to .ncs to match the "Open scene" and "Save scene" commands. Quick recall scenes scenes are stored in ~/Library/Application Support/Lynx for macOS and C:Users*UserName*AppDataRoamingLynx on Windows. Previously stored "Quick Recall" scenes will need to be manually renamed (one-time) to continue to be seen by this and future versions of NControl.

• Added support for DB-ADAT

• Added keyboard shortcuts for several functions within NControl:
  Current Output
  Up Arrow / F12: Volume up 0.5dB
  Down Arrow / F11: Volume down 0.5dB
  Alt+Up Arrow: Volume up 3.0dB
  Alt+Down Arrow: Volume down 3.0dB
  Page Up: Volume up 3.0dB
  Page Down: Volume down 3.0dB
  M / F10: Mute
  D: Dim
  L: Link
  Right Arrow / Tab: Select Output to the Right
  Left Arrow / Shift+Tab: Select Output to the Left
  SD Card Transport Control
  Space-bar / F8: Play / Stop
  F7: Previous Track
  F9: Next Track
  Media Keyboards
  Play / Pause: Play / Stop
  Stop: Stop
  Prev Track: Previous Track
  Next Track: Next Track
• Fixed issue with Scene renaming.
• Fixed issue with Slider link not linking the correct outputs for anything other than Out 1&2.
• Added Advanced popup menu which contains:
  Adapter Settings (Only with LT-TB or LT-TB3)
  Show PCIe Latency (Only with LT-TB or LT-TB3)
  Payload Size (Only with LT-TB or LT-TB3)
  Set Aurora(n) date & time

• Fixed issue that caused meters for AES Out 9-16 to not be displayed properly.
• Added AES Input Status to input source panel.
• Added data throttling to network connection for LT-DANTE.
• Changed "LSlot" to "Dante" in Clock Source popup for LT-DANTE connection.
• NControl is now 64-bit on both macOS (notarized) and Windows (signed).
• Lynx recommends the use of Firmware 1.19 (August 5, 2019) or higher with this version of NControl.

• Added keyboard support:
  • Available if your keyboard has media controls:
  • Mute mutes/unmutes current output
  • Volume +/- changes volume on current output
  • Play plays/pauses SD card
  • Stop stops SD card
  • Prev Track / Next Track does those functions on SD card
  • Spacebar plays/pauses SD card
  • Up Arrow/Down Arrow changes volume on current output
  • M mutes/unmutes current output
  • D dims/undims current output
  • Tab / Shift-Tab & left arrow/right arrow moves currently selected output
    
• Fixes store scene issue that showed all scenes as available after saving just scene 1

• Added LSlot record routing menu option in addition to LSlot record routing page. This new popup page allows the end user channel-by-channel control of routing from the Aurora(n) back to the record streams on the computer. Holding the "Control" key while selecting a specific menu item will set the remaining 8-channels of a channel block in order. (If the user starts with channel 4, for instance, holding control and clicking "Line In 4" will set channels 4-8 to Line In 4-8.) This new page also gives the user the ability to loopback LSlot channels so LSlot record channels gets it's source from an LSlot play channel.

• NControl for Macintosh now 64-bit application and is notarized by Apple.
• NControl for Windows is 32-bit application (so it can load on both 32-bit and 64-bit operating systems).
• Added startup scene save on NControl quit.

1. Meter data are ignored for the first 125ms upon startup to avoid showing a meter deflection when none exists from hardware.
2. Now using JUCE 7 library.
3. Macintosh version now supports Apple Silicon (M1) Dante connection method.
4. Macintosh version now has OpenGL disabled by default since JUCE 7 now supports Metal rendering.
5. Macintosh version now supports macOS 10.10 and up (the oldest version of the OS supported by the Audinate Dante library).

1. Hilo Remote now uses NControl/LynxFirmware lower level code which allows for multiple Hilo's to be detected and used from different types of interfaces. Hilo's using Thunderbolt, USB and Dante interfaces can all be used at the same time.
2. Updated to Dante 4.4 API. Please note that Audinate does not support Dante on Apple Silicon M1 based computers. Supports Big Sur on Intel.

1. Added "Master Out" enable button on Adapter panel.
2. Added "Master Out" volume controls to Output panel, if enabled.

• Universal build for Intel & Apple Silicon based computers.

1. Version 1.0.19 is now 64 bit and so is compatible with Mac Catalina.
2. The window does not resize automatically (if you remove LSLOT from the display, e.g.)
3. If Thunderbolt, there are new items under Advanced: Show PCIe Latency and Payload Size (transfer size of data).

1. Corrected issue that prevented connection to LT-DANTE with release firmware.
2. Added Zoom menu, with a default of Auto which follows the text size from the operating system. Menu option allows user to change the overall size of the Hilo Remote window to fit available space.
3. Changed SynchroLock to display 20%, 40%, 60%, 80% for working instead of 25%, 50%, 75% and 100% to match Hilo Version 8 firmware display.

1. Added support for LT-DANTE.
2. Removed Word Clock/2 and Word Clock/4 from the Preferred Clock Source since those are no longer valid.
3. Added LSlot to the Preferred Clock Source to support LT-DANTE.

• Minor usability updates.

• iPad version.

1. Added RTA Meter Decay Rate to allow the user to select Slow/Medium/Fast decay rate for the RTA screen meters.
2. Changed RTA screen analog volume controls from knobs to sliders for easier manipulation on touch-screens.
3. Added Firmware Date to About Hilo Remote when using Firmware 6 or higher.

1. Added RTA screen. Please note that changing the meter source for the RTA screen will also update the meter source on the Hilo front panel (and vice versa).

1. Made compatible with new Hilo Firmware 7 metering.
2. Added Firmware Date to About Hilo Remote when using Firmware 7 or higher.

1. Added Connection menu item and dialog box. Allows user to select which connection types are allowed for Hilo Remote. For instance, if your Hilo only has a USB connection, you may uncheck the Thunderbolt and TCP/IP connection types and Hilo Remote will not try and find a Hilo using those methods.
2. Added Open Scene and Save Scene menu items. Allows user to save scenes to local computer storage. Please note that this does not change scene memory on the Hilo. Scene files are standard XML and can be moved from one computer to another (including between OS X and Windows).
3. OS X version now supports 10.6 to 10.10 and is digitally signed.
4. Fully supports LynxRedirector (available as a separate download). LynxRedirector allows Hilo to be remote controlled over a local or wide area network (including over the Internet). Full documentation on how to setup Hilo Remote to use LynxRedirector is included with the LynxRedirector application.

1. Released to specific users for testing purposes.
2. Hilo Remote now shows connection status in upper right portion of toolbar. Possible states are:
   • Disconnected
   • Connected via USB
   • Connected via Thunderbolt
   • Connected via TCP/IP

1. First release of Hilo Remote.
2. The Hilo must have Firmware 6 or higher for Hilo Remote to function properly.

1. Supports E44/E22 Rev C cards.
2. MIDI interrupts now moved to a different thread.
3. Includes NControl 1.0.10.5.
4. Includes Hilo Remote 1.0.23.
5. Supports Big Sur, Monterey, Ventura and Sonoma.

1. Fixed issue for Intel build that caused a kernel panic when using non-DMA V2 firmware (AES16e: Firmware 12.11 or older). Non-DMA V2 firmware is not supported on Apple Silicon based computers (must use AES16e firmware 14.1).
2. Lynx Mixer "Rate Select" now changes with "Measured Rate".
3. Includes NControl 1.0.7.6 which now has MIDI Control Surface support.
4. Includes Hilo Remote 1.0.22.
5. Supports Big Sur and Monterey.

1. Fixed issue for Intel build that caused a kernel panic when using non-DMA V2 firmware (AES16e: Firmware 12.11 or older). Non-DMA V2 firmware is not supported on Apple Silicon based computers (must use AES16e firmware 14.1).
2. Lynx Mixer "Rate Select" now changes with "Measured Rate".
3. Includes NControl 1.0.7.6 which now has MIDI Control Surface support.
4. Includes Hilo Remote 1.0.22.
5. Supports Big Sur and Monterey.

1. Fixed issue where unplug or power off of Thunderbolt device would cause kernel panic on M1 Macintosh on macOS 12 Monterey (worked properly on Intel Big Sur/Monterey and M1 Big Sur).

1. Fixed issue where interrupts might be missed if NControl is running at same time as streaming.
2. Changed "Auto" Payload size to 32 on Apple Silicon M1 platform.

1. Added support for macOS 11 Big Sur. This driver only supports Big Sur and will not function on any previous macOS operating system.
2. Added support for Apple Silicon M1 platform. To install this driver on a Macintosh with an M1 processor, kernel extensions must be enabled manually in recovery mode. Please see the FAQ for step by step installation instructions.

1. Aurora(n)-TB, Aurora(n)-TB3, Hilo-TB, Hilo-TB3 now have the sample rate and sync source read from the device upon driver load so the device retains the sample rate and sync source, not the driver. This prevents a cable disconnection from overriding the sample rate or sync source stored on the device.
2. Lynx Mixer > Settings > Advanced > Adapter Settings > Channel Mode now controls the number of channels shown for a classic Aurora 8-TB where previously it was fixed at 16-channels. Channel Mode in Lynx Mixer for classic Aurora 8-TB now allows 2 thru 16-channels to be selected.

1. Added support for DB-ADAT connected to LM-DIG inside Aurora(n).
2. Added NControl to driver package.
   1. Supports DB-ADAT.
   2. Fixes issue with Mic Pre not showing Gain when in Hi-Z mode.
   3. Fixes issue with About box not showing driver version info properly.
3. Changed to "Packages.app" for installer to allow for notarization on Catalina
4. Added register update after card info write to prevent streaming issues after an EEPROM write.
5. Saves Hardware Payload Size in EEPROM instead of MixerState.xml so it is restored properly if the device is plugged in or turned on after the Mac has started.
6. Lynx Mixer now shows and can select clock sources for LM-DIG and/or DB-ADAT with Firmware 1.21 on Aurora(n).
7. Changed smallest Hardware Payload Size when on "Auto" to 8 (from 4).
8. Added NControl 1.0.0 to driver installation package. NControl will be installed into the /Applications folder and will automatically be launched if the user launches Lynx Mixer with an Aurora(n)-TB3 (which doesn't support Lynx Mixer).

1. Fixed issue with CARDID read on driver load that might cause firmware updates to timeout.

1. Fixed issue with Lynx Mixer not allowing mute changes for sources to anything other than Out 1&2 (introduced on 58G).

1. Driver and all applications are 64-bit and notarized by Apple for Mojave (10.14) and Catalina (10.15) and up.
2. Changed interface for FWUpdate to 64-bit. Older versions of FWUpdate will no longer function. User must use FWUpdate for 58G if a firmware update is required.
3. Sample offset fixed for Aurora(n)-TB. Added one sample for play and one sample for record.
4. Now includes Hilo Remote 1.0.19.
   1. Hilo Remote no longer automatically resizes the window based on the number of channels.
   2. Added "Advanced" menu option of connection method is Thunderbolt which may contain the following menu options depending on hardware configuration:
   1. Added "Adapter Settings" dialog to allow adapter settings previously only available with Lynx Mixer to be changed with Hilo Remote.
   2. Please note: This setting is for advanced use and normally should never need to be changed by the end user. Added "Hardware Payload Size". This should normally be left on "Auto" to allow the driver to determine the payload size (see note 5 below).
   3. Please note: This setting is for advanced use and normally should never need to be changed by the end user. Added "Show PCIe DMA Completion Latency". This option will temporarily display the PCI Express DMA completion latency on the toolbar while streaming. This setting is not saved so each launch of Hilo Remote will have this option unchecked. The latency value can be used in conjunction with the Settings > Advanced > Hardware Payload Size to insure glitch free streaming. The current maximum value will be displayed in both microseconds and samples (adjusted for the current sample rate). The Hardware Payload Size should always be double the worst-case latency number in samples. The software buffer size should always be a minimum of 4 times the Hardware Payload Size.
5. Changed how the Hardware Payload Size is automatically calculated. The default values are 8 samples for 44.1kHz and 48kHz; 16 for 88.2kHz and 96kHz; and 32 for 176.4kHz and 192kHz. If Advanced > Hardware Payload Size is set to "Auto", each time the streaming is stopped, the driver evaluates the computers performance and may set a new default Hardware Payload Size if the driver based on the that performance measurement. This may result in either a higher Hardware Payload Size being selected, or a lower Hardware Payload Size depending on the speed of the computers PCIe DMA Completion Latency value.
6. In Lynx Mixer: Changed "Hardware Buffer Size" to "Hardware Payload Size" to keep it from being confused with the software buffer size. This should normally be left on "Auto" to allow the driver to determine the payload size (see note 5 above).
7. Please note: This setting is for advanced use and normally should never need to be changed by the end user. In Lynx Mixer: Added "Show PCIe DMA Completion Latency". This option will temporarily display the PCI Express DMA completion latency on the toolbar while streaming. This setting is not saved so each launch of Lynx Mixer will have this option unchecked. The latency value can be used in conjunction with the Settings > Advanced > Hardware Payload Size to insure glitch free streaming. The current maximum value will be displayed in both microseconds and samples (adjusted for the current sample rate). The Hardware Payload Size should always be double the worst-case latency number in samples. The software buffer size should always be a minimum of 4 times the Hardware Payload Size.
8. In Lynx Mixer: Added the ability to change the Sync Source on the Aurora(n)-TB. Please note that Firmware 6.4 is required on the LT-TB for this to function properly.

1. Driver and all applications are now notarized by Apple for Mojave (10.14) and up.
2. Changed name of Hilo with LT-TB from "LT-TB" to "Hilo-TB".
3. All applications are now 64-bit to avoid warning on Mojave.
4. Transmit FIFO full check now performed for internal MIDI connection on LT-TB.
5. Sample offset fixed for LT-TB 5.5 firmware.

1. Added support for Aurora(n) with LM-DIG board.
2. Fixed issue for startup scene on certain configurations.
3. Driver now supports macOS 10.9 to macOS 10.13.

1. Added support for Aurora(n)-TB.

1. Added work-around for issue with DMAV2PLUS that would occasionally cause dropped samples on input.
2. Added support for fixed recording timing DMAV2PLUS firmware:
   AES16e: 14.1
   LT-TB: 6.2
   E44/E22: 2.1
3. Added support for non-mixable integer format. This allows applications to bypass the Float32 to SignedInt32 conversion (which is bit-perfect, so there is no sonic difference either way).
4. Includes Hilo Remote Version 1.0.12.
5. Added new signing certificate for OS X 10.9 and up.
6. Driver now supports OS X 10.9 to OS X 10.11.

1. Added support for DMAV2PLUS for AES16e/LT-TB/E44/E22.
   DMAV2PLUS supports the following features:
   - Smaller transfer sizes to reduce latency to under 1ms round-trip (96kHz, 32 sample buffer)
   DMAV2PLUS is supported with the following firmware:
   AES16e: 14.0
   LT-TB: 6.0
   E44/E22: 2.0
2. Added new controls in Lynx Mixer to support DMAV2PLUS. Settings > Advanced > Hardware Buffer Size. This settings should be left at 'Auto' unless you are working with Lynx Technical Support on a specific issue. Changing this control sets the amount of audio buffered in the hardware. The smaller the number the faster the CPU must respond to interrupts before audio breaks up.
3. Includes Hilo Remote Version 1.0.11.

1. Added support for 32-bit Kernel for OS X 10.6 and 10.7.
2. Fixed issue that caused Build 57 driver to not load properly on OS X 10.8.
3. Included Hilo Remote 1.0.0.8.

1. Added full support for E44 and E22 PCI Express cards.
2. Corrected issue with Hilo-TB where the delay compensation was off by 1 sample for input and output.
3. Included Hilo Remote 1.0.0.6.
4. Added support for 2, 4 and 8-channel modes (in addition to 16, 24 and 32) for AES16e and LT-TB.

1. Added full support for LT-TB Thunderbolt adapter for Aurora and Hilo converters.
2. Added new Lynx Mixer application which gives the following new features:
   • Tabs for each adapter installed instead of a separate floating window.
   • Adapter; Record and Play pane may be displayed
   • Rate Lock now available in OS X, which allows the sample rate to be fixed.
   • Mixer Lock now available in OS X, which keeps the user for accidentally changing any control.
   • Same look and feel for both Windows and OS X.
   • Saves scenes in a standard XML file which are no longer version or OS specific.
   • Added "Disable CPU Power Management" in driver which will turn off CPU power management whenever the driver is streaming. This may cause additional power draw for your computer while streaming audio, which may result in shorter on-battery time and higher heat generated. You may disable this new feature by un-checking the menu item while streaming is not active. If glitches in audio playback occur at higher sample rates or higher numbers of channels, we recommend leaving this item checked.
   • For the AES16e+Aurora combo, new Aurora menu items appear within the Settings menu. This replaces Aurora Remote Control which is no longer needed for the AES16e+Aurora combo.
   • New method for controlling the monitor sources.
   • Inputs and Outputs change name based on what is connected. For the AES16e by itself, I/O will be labeled as Digital In and Digital Out. For the AES16e+Aurora combo, I/O will be labeled as Analog In and Analog Out.
   • LS-ADAT fully supported with "ADAT Clock Source" selection in Settings Menu and LStream clock lockout for when the ADAT Clock Source is set to Slave.
   • For the Aurora-TB and AES16e+Aurora combo, the Adapter Settings dialog now flashes the front panel of the Aurora when each device is selected. This allows easy identification when selecting the order of the adapters.
3. When driver is operating in 16-channel mode, outputs 17-32 (AES16e: ADAT or AES50 / Aurora 16-TB: AES/EBU) are mirrored from the first 16-channels.
4. When setting up an aggregate device in Audio/MIDI Setup, it is important to: Clock all devices from the same source; Set the Sync Source in Lynx Mixer to External for all "slave" devices (please note setting the clock source in Audio/MIDI setup has been removed); Turn "Drift/Resample" off for all "slave" devices in Audio/MIDI setup.

1. Added full support for OS X 10.9 (Mavericks). Installer and driver are now digitally signed (which is required by OS X 10.9). Signed driver is installed in /Library/Extensions and unsigned driver is installed in /System/Library/Extensions (for OS X 10.6; 10.7 and 10.8) as required by Apple.
2. Channel mode and card order (for a multi-card system) can now be set from within Lynx Mixer. Lynx Mixer > Settings > Adapter Settings. Please note that you must restart the computer for these settings to take effect. You must have firmware version 12.11 on your AES16e for this to work properly.
3. Remove ability to control output volumes from Audio/MIDI Setup. If you need this capability, please use Build 54.
4. Changed where Lynx Mixer stores the last used scene for restart. It is now stored in the Home Folder/Library/Preferences.
5. Added complete support for Thunderbolt hot plug and unplug. Please note that for some Thunderbolt chassis, OS X 10.8.5 is required for hot plug to work properly.
6. The AES16e-50 card defaults now has the AES50 port routed for all of the inputs.

1. Added full support for OS X 10.8 (Mountain Lion). Installer is now digitally signed (which is required by OS X 10.8).
2. Installer can now change from one channel mode to another (16/24/32) without rebooting the computer. Please note that you may need to uninstall the previous driver using the Lynx OS X Driver Uninstaller (see link above) before installing this driver to allow the channel mode change without reboot feature to work properly.
3. Added support for 24-channel mode.
4. Lynx Mixer now supports 16/24/32-channel mode and shows all controls for each mode. The channel mode currently selected is shown in About Lynx Mixer.
5. Audio/MIDI Setup can now control the output volumes, output mutes, input mutes and feed-through mutes. This allows the user to change these controls without launching Lynx Mixer (and also allows applications other than Lynx Mixer to change these controls).
6. Lynx Mixer now saves/restores all 32-channels upon exiting Lynx Mixer which allows channels 17-32 to remember the input routing through a reboot.
7. Increased the number of active devices to match the maximum number of devices available (except for 4X rates where it maxes out at 8 devices / 16 channels). Previously it was set to 8; 8 and 4.

1. Added full support for Thunderbolt expansion chassis. Implements hot-plugging and unplugging as well as sleep mode. Please note that Thunderbolt expansion chassis with the Lynx Audio Card must be connected and enabled when powering on the Macintosh otherwise the boot-loader will not allocate resources for the device and the driver will not be able to load.
2. Defaulted "Allow Clock Source Change while Active" to TRUE. Previously this control might get set to FALSE when doing a Restore Defaults, which would keep some applications from being able to change the sample rate until the streaming was stopped.

1. Set "Allow Clock Source Change while Active" to TRUE when loading driver and starting streaming.

1. Internal Test Builds.

1. Added support for 64-bit kernel.
2. Removed "Output Select" from LS-ADAT page in Lynx Mixer when running with an AES16e.
3. Added additional error messages to the kernel.log (Applications > Utilities > Console > kernel.log) if the driver fails to load.v
4. This is an Intel Only Build compatible with OS X 10.6 (Snow Leopard) 32-bit and 64-bit kernel.

1. Added support for AES16e-50.
2. Added support for AES16e Firmware Build 11, which includes 64x32 mixer. Please note that driver defaults to 8 record and 8 play devices active so to use all 32-channels (16-devices) will require changing the Device Settings from within Lynx Mixer. Only the first 16-channels are routable on the Record/Play page (the top 16-channels are defaulted to LStream). Only the first 16-channels are routable on the Outputs page (the top 16-channels are defaulted to 1:1 from the play devices). This just means that it is not possible to do a record monitor (without software latency) on channels 17-32.
3. This is an Intel Only Build to make it compatible with OS X 10.6 (Snow Leopard) 32-bit kernel.

1. Fixed issue where Record Sources may be incorrectly listed as AES16 Digital Inputs instead of LynxTWO/L22 Inputs.
2. Removed MIDI Plugin.
3. This is an Intel Only Build to make it compatible with OS X 10.6 (Snow Leopard) 32-bit kernel.

1. Fixed issue where restoring scenes may cause kernel panic on LynxTWO/L22.

1. Added FWUpdate support for AES16e.
2. Fixed LynxTWORestoreSettings so it now runs on system startup.
3. Added About Box to Lynx Mixer. Please note when you open the About Box it places the text of the About Box into the clipboard so you can paste it to an email or our support forum without having to retype any information.
4. Fixed Sleep support so system can now go to Sleep and Resume from sleep without a Kernel Panic.
5. Fixed Sample Rate select control in Lynx Mixer so it always show the correct sample rate instead of occasionally being blank.
6. Renamed all devices (including MIDI) to show consistent device names.

1. No FWUpdate support for AES16e.
2. Fixed Logic 8 set 192kHz sample rate issue.
3. Included LynxRestoreSettings.
4. Saving scenes now saves all controls.

1. LynxRestoreSettings is not included.
2. Saving a scene in Lynx Mixer will not save all
of the controls. This just means that when you boot the Lynx Mixer will always start with the default settings..
3. Fixed Logic 8 set sample rate issue.
4. Updated Lynx Mixer AES16 Adapter page so status controls are color coded.
5. Fixed Lynx Mixer for PPC so font changes don't crash the program.
6. Fixed Interface to Aurora Remote so launching ARC will not Kernel Panic the computer.

1. Added support AES16e.
2. Universal Binary. Will work with either Intel or PPC Macintosh.

1. Added support for Aurora Remote and Aurora Update applications.
2. Renamed installer package to Lynx_OSX_xx.pkg.
3. Changed to ZIP file format for installer package.
4. Holding down the 'control' key while changing a main output volume now changes all 16 main output volumes together. The shift key still changes stereo pairs.
5. Holding down the 'control' key while selecting the monitor source or record source sets all the monitor sources to the right of the current control to next valid source.
6. Driver now supports both big endian and little endian firmware. This means if the Lynx PCI audio card already has Windows firmware on it, there is no need to update it to Macintosh firmware. All future firmware releases will be little endian (Windows) only. Please Note: This change allows the driver to use a Lynx PCI audio card with either Windows or Macintosh firmware. This driver will only work on a Macintosh with G5 and G4 processors, not Intel processors.
7. L2Update programs X21 and older will no longer function with this driver. If you must use an older L2Update program, first DesInstall this driver, restart the computer, run L2Update, power down then power back up and reinstall the driver.

1. Internal Test Build.

1. Fixed permissions issue for OSX 10.4 with StartupItems.
2. Fixed Recalibrate Converters button that was broken in Build 39.
3. Fixed audio erasure playback issue that was broken in Build 39. This would cause a 'stuttering' sound when multiple applications tried to playback audio from the same device (such as iTunes and Peak).
4. Fixed Restore Settings problem that may overwrite some trim controls values.
5. Fixed Restore Settings version so older settings files will no longer load.
6. Driver now only advertises to applications that the AES16 can do 32kHz to 192kHz. Previously the driver would advertise it could do 11.025 & 22.05kHz when it actually could not.

1. Changed how the Sample Clock Source selection works. Now, the control 'Preferred Clock Source' allows selection of the desired sample clock source. Once every 250 milliseconds (4 times a second) the sample clock source is evaluated by looking at the appropriate System Clock Rate (Frequency Counter next to the Preferred Clock Source selection button) to determine if the Preferred Clock Source is valid. If the clock source is valid, the driver switches the Sample Clock Source to the Preferred Clock Source. If at any time the Preferred Clock Source becomes invalid (clock cable disconnected, external gear that is feeding the clock is turned off), the driver changes the Sample Clock Source back to Internal, even if the card has a device that is actively playing or recording.
2. Removed the 'Sample Clock Reference' control as it was no longer needed because the driver automatically detects the different clock references (Word/Word256/13.5MHz/27MHz).
3. Added 'Rate Lock' control. Default is OFF. When ON, the driver will ignore all requests to change the Sample Clock Rate, including those coming from applications. The effectively causes all files not running at the currently selected clock rate to be software sample rate converted (if available) during playback/recording. When clocking to an external word clock, the Rate Lock function is effectively ON regardless of this switch setting, and the rate is locked to the same rate of the incoming word clock.
4. Fixed a problem on startup that would cause the driver to be out-of-sync with the hardware. This caused additional latency to be added to the audio stream.
5. Changed the number of transfers per interrupt from 2 to 8, which reduces the CPU load for processing interrupts.
6. Added output mixer source volume controls to Lynx Mixer Outputs page. This allows individual volume control over each source going to each output for custom mixes. Note: Holding down the shift key will change the volumes in stereo pairs.

1. The driver now recognizes Lynx L22 with serial numbers 230408XXXX and LynxTWO-A with serial numbers 200401XXXX as having the Rev A analog to digital converter chip. This corrects for a phase problem between channels 1 & 2 (and 3 & 4 on the LynxTWO-A) during recording. PLEASE NOTE: Only cards with these two specific serial number sequences would have exhibited any phase problems during recording and this driver corrects the issue.

1. Renamed 'LynxTWO Mixer' to 'Lynx Mixer'.
2. Fixed AES16-SRC Adapter Page in Lynx Mixer to correctly display SRC Enable & SRC Match Phase controls upon startup.
3. Lynx Mixer now saves the state of all the AES16 controls upon exiting and when saving a Scene.
4. Added Settings > Device Settings dialog box to Lynx Mixer to allow for configuration of the driver performance. PLEASE NOTE: The driver must not be active when making changes to the Device Settings dialog box. You must manually ensure the the transfer size set in the Lynx Mixer is less than or equal to the buffer size set in the application, otherwise audio break-up may occur. Reducing the number of active devices does not change how the driver appears inside an application, it only turns off the PCI Bus transfers for those devices - thus freeing the system to do other work.
5. Lynx Mixer now only shows the appropriate Settings menu items for the type of card in use.

1. First non-beta release of driver.
2. Added support for changing the sample clock source from within applications, such as Nuendo and Audio & MIDI Setup.
3. Put the maximum limit on number of devices at high sample rate (>96kHz) to 5 (giving 10in+10out channels).

1. Changed when the time stamp is reported to fix problem with larger record buffers and record buffer wrapping problem.

1. Changed how current position is reported to keep erase head getting too close to the playback head.
2. Added Restore Defaults to LynxTWO Mixer Application.

1. Complete rewrite of ISR and buffer handling to improve latency performance. Internal Release Only.

1. Changed how the DMA transfers are handled to improve reliability (GLIMIT to 256, SO to 256).

1. Fixed a problem that misreported the latency to CoreAudio.
2. Changed how the DMA transfers are handled to improve latency performance (GLIMIT to 32, SO to 32).
3. Changed the DMA buffer size to 16 x 256 sample-frames.
4. Fixed the LS-ADAT window to correctly display the position from the Sync In port.
5. Changed the frequency counters in the LynxTWO Mixer to show only one decimal point of accuracy in the kHz range.
6. Fixed a problem with the AES16-SRC Adapter Page that wouldn't allow enabling of the SRC Check Box.
7. Put the maximum limit on number of devices at high sample rate (>96kHz) to 2 (giving 4in+4out channels) as a temporary measure until the next rev of the driver.

1. Added support for the AES16 and AES16-SRC.

1. Put the maximum limit on number of devices at high sample rate (>96kHz) back to 4 (giving 8in+8out channels).

1. Changed the Record Source Menus to not show any check-marks.
2. Put the maximum limit on number of devices at high sample rate (>96kHz) to 5 (giving 10in+10out channels).

1. Added Record Source Lookup for Output Page in Lynx Mixer.

1. Record Sources Menu in Record/Play page is now adapter specific.

1. Fixed a problem that caused audio breakup at higher sample rates (>96kHz).

1. Increased the "tolerance" for overruns from 0 to 8.

1. Fixed a problem that caused the device to not play anything after using a high sampling rate (>96kHz).
2. Put the maximum limit on number of devices at high sample rate (>96kHz) to 4 (giving 8in+8out channels).
3. Improved overrun detection and recovery.

1. Changed the AudioEngine to only prepare and use 6 devices if sampling rate is above 96kHz.
2. Create just one multi-channel device to work around sample rate setting issue with Nuendo 2 & Cubase SX.

1. Small modification to installer package flags.
2. Changed the SetInterruptSamples to match the AddEntry buffer size.
3. Fix in control panel to reflect updated LTC Generator state.

1. Using the new HalMIDIDevice to fix timecode conversion.
2. Minor improvements in the mixer - Depth popup clipping fixed.
3. Set the dBScale bitmap transparency.

1. Under some circumstances the HAL MIDI device was not getting the start call.
2. Some changes to the MIDI Send procedure.
3. Added the MTC Source menu to the mixer.

1. The mixer windows are now staggered on the main screen so that you can immediately see multiple windows if there are multiple LynxTWOs in the machine.
2. The MIDI driver is now included with the installer.

1. Removed reading of Digital Input status on Adapter page to prevent Mixer from locking up certain Macs.

1. Added setting up the sample offset parameter (to help with noise).
2. Added Settings menu functionality.
3. Enabled Clock Sample Rate popup.
4. Added Play information to the Record/Play tab.
5. Fixed Overload counters that were not counting up.
6. Fixed Pressing X on the main window would not close the application.
7. Fixed LStream tabs that were not working.

1. Added ability to Load/Save Scenes.
2. Added code to save mixer settings on application close (that's used at bootup).
3. Changed the name of Inputs tab to Record/Play.
4. Added the dB scale display to Outputs and Record/Play page.
5. Changed the name (and functionality) of LS-AES tabs to indicate the LStream ports.
6. Centering window on startup.

1. Inputs page now active.
2. Outputs page now active.

1. Added code for supporting Mixer controls.
2. Added code to support Kext Interface versioning.
3. Improved time-stamping by taking one on entry to the ISR.
4. Added code to specify sample latency (safety offset).
5. Added LynxTWO Mixer with Adapter Page controls functional. LynxTWO Mixer is installed in the Applications Folder.
   Please Note: If you choose an Sample Clock Source other than Internal and then try to play/record something, you must manually insure that the Sample Clock Source has a valid clock running or CoreAudio will get corrupted and only a reboot will allow you to use the audio engine again.

1. Changed when the interrupt is enabled to prevent lockups on boot.

1. Using optimized float/int conversion routines.
2. Using the last input device for interrupt control/position report.
3. Added the user-mode interface so as to make it work with L2Update.

1. Now reporting position based on the "current" DMA buffer block only.
2. Using fewer interrupts.
3. Using the primary interrupt handler for all processing.
4. Added "names" (Play N, Record N) for Streams.
5. Over/under run recovery improvements.

1. Driver now has interrupts on only for the last device that is active. This reduces the number of interrupts on the PCI bus.

1. Added buffer overrun detection/recovery.
2. Changed the DMA buffer size to 8 x 256 sample-frames.

1. First public beta release of driver.

1. Supports E44/E22 Rev C cards.
2. MIDI interrupts now moved to a different thread.
3. Includes NControl 1.0.10.5.
4. Includes Hilo Remote 1.0.23.
5. Supports Big Sur, Monterey, Ventura and Sonoma.

1. Fixed issue for Intel build that caused a kernel panic when using non-DMA V2 firmware (AES16e: Firmware 12.11 or older). Non-DMA V2 firmware is not supported on Apple Silicon based computers (must use AES16e firmware 14.1).
2. Lynx Mixer "Rate Select" now changes with "Measured Rate".
3. Includes NControl 1.0.7.6 which now has MIDI Control Surface support.
4. Includes Hilo Remote 1.0.22.
5. Supports Big Sur and Monterey.

1. Fixed issue for Intel build that caused a kernel panic when using non-DMA V2 firmware (AES16e: Firmware 12.11 or older). Non-DMA V2 firmware is not supported on Apple Silicon based computers (must use AES16e firmware 14.1).
2. Lynx Mixer "Rate Select" now changes with "Measured Rate".
3. Includes NControl 1.0.7.6 which now has MIDI Control Surface support.
4. Includes Hilo Remote 1.0.22.
5. Supports Big Sur and Monterey.

1. Fixed issue where unplug or power off of Thunderbolt device would cause kernel panic on M1 Macintosh on macOS 12 Monterey (worked properly on Intel Big Sur/Monterey and M1 Big Sur).

1. Fixed issue where interrupts might be missed if NControl is running at same time as streaming.
2. Changed "Auto" Payload size to 32 on Apple Silicon M1 platform.

1. Added support for macOS 11 Big Sur. This driver only supports Big Sur and will not function on any previous macOS operating system.
2. Added support for Apple Silicon M1 platform. To install this driver on a Macintosh with an M1 processor, kernel extensions must be enabled manually in recovery mode. Please see the FAQ for step by step installation instructions.

1. Aurora(n)-TB, Aurora(n)-TB3, Hilo-TB, Hilo-TB3 now have the sample rate and sync source read from the device upon driver load so the device retains the sample rate and sync source, not the driver. This prevents a cable disconnection from overriding the sample rate or sync source stored on the device.
2. Lynx Mixer > Settings > Advanced > Adapter Settings > Channel Mode now controls the number of channels shown for a classic Aurora 8-TB where previously it was fixed at 16-channels. Channel Mode in Lynx Mixer for classic Aurora 8-TB now allows 2 thru 16-channels to be selected.

1. Added support for DB-ADAT connected to LM-DIG inside Aurora(n).
2. Added NControl to driver package.
   1. Supports DB-ADAT.
   2. Fixes issue with Mic Pre not showing Gain when in Hi-Z mode.
   3. Fixes issue with About box not showing driver version info properly.
3. Changed to "Packages.app" for installer to allow for notarization on Catalina
4. Added register update after card info write to prevent streaming issues after an EEPROM write.
5. Saves Hardware Payload Size in EEPROM instead of MixerState.xml so it is restored properly if the device is plugged in or turned on after the Mac has started.
6. Lynx Mixer now shows and can select clock sources for LM-DIG and/or DB-ADAT with Firmware 1.21 on Aurora(n).
7. Changed smallest Hardware Payload Size when on "Auto" to 8 (from 4).
8. Added NControl 1.0.0 to driver installation package. NControl will be installed into the /Applications folder and will automatically be launched if the user launches Lynx Mixer with an Aurora(n)-TB3 (which doesn't support Lynx Mixer).

1. Fixed issue with CARDID read on driver load that might cause firmware updates to timeout.

1. Fixed issue with Lynx Mixer not allowing mute changes for sources to anything other than Out 1&2 (introduced on 58G).

1. Driver and all applications are 64-bit and notarized by Apple for Mojave (10.14) and Catalina (10.15) and up.
2. Changed interface for FWUpdate to 64-bit. Older versions of FWUpdate will no longer function. User must use FWUpdate for 58G if a firmware update is required.
3. Sample offset fixed for Aurora(n)-TB. Added one sample for play and one sample for record.
4. Now includes Hilo Remote 1.0.19.
   1. Hilo Remote no longer automatically resizes the window based on the number of channels.
   2. Added "Advanced" menu option of connection method is Thunderbolt which may contain the following menu options depending on hardware configuration:
   1. Added "Adapter Settings" dialog to allow adapter settings previously only available with Lynx Mixer to be changed with Hilo Remote.
   2. Please note: This setting is for advanced use and normally should never need to be changed by the end user. Added "Hardware Payload Size". This should normally be left on "Auto" to allow the driver to determine the payload size (see note 5 below).
   3. Please note: This setting is for advanced use and normally should never need to be changed by the end user. Added "Show PCIe DMA Completion Latency". This option will temporarily display the PCI Express DMA completion latency on the toolbar while streaming. This setting is not saved so each launch of Hilo Remote will have this option unchecked. The latency value can be used in conjunction with the Settings > Advanced > Hardware Payload Size to insure glitch free streaming. The current maximum value will be displayed in both microseconds and samples (adjusted for the current sample rate). The Hardware Payload Size should always be double the worst-case latency number in samples. The software buffer size should always be a minimum of 4 times the Hardware Payload Size.
5. Changed how the Hardware Payload Size is automatically calculated. The default values are 8 samples for 44.1kHz and 48kHz; 16 for 88.2kHz and 96kHz; and 32 for 176.4kHz and 192kHz. If Advanced > Hardware Payload Size is set to "Auto", each time the streaming is stopped, the driver evaluates the computers performance and may set a new default Hardware Payload Size if the driver based on the that performance measurement. This may result in either a higher Hardware Payload Size being selected, or a lower Hardware Payload Size depending on the speed of the computers PCIe DMA Completion Latency value.
6. In Lynx Mixer: Changed "Hardware Buffer Size" to "Hardware Payload Size" to keep it from being confused with the software buffer size. This should normally be left on "Auto" to allow the driver to determine the payload size (see note 5 above).
7. Please note: This setting is for advanced use and normally should never need to be changed by the end user. In Lynx Mixer: Added "Show PCIe DMA Completion Latency". This option will temporarily display the PCI Express DMA completion latency on the toolbar while streaming. This setting is not saved so each launch of Lynx Mixer will have this option unchecked. The latency value can be used in conjunction with the Settings > Advanced > Hardware Payload Size to insure glitch free streaming. The current maximum value will be displayed in both microseconds and samples (adjusted for the current sample rate). The Hardware Payload Size should always be double the worst-case latency number in samples. The software buffer size should always be a minimum of 4 times the Hardware Payload Size.
8. In Lynx Mixer: Added the ability to change the Sync Source on the Aurora(n)-TB. Please note that Firmware 6.4 is required on the LT-TB for this to function properly.

1. Driver and all applications are now notarized by Apple for Mojave (10.14) and up.
2. Changed name of Hilo with LT-TB from "LT-TB" to "Hilo-TB".
3. All applications are now 64-bit to avoid warning on Mojave.
4. Transmit FIFO full check now performed for internal MIDI connection on LT-TB.
5. Sample offset fixed for LT-TB 5.5 firmware.

1. Added support for Aurora(n) with LM-DIG board.
2. Fixed issue for startup scene on certain configurations.
3. Driver now supports macOS 10.9 to macOS 10.13.

1. Added support for Aurora(n)-TB.

1. Added work-around for issue with DMAV2PLUS that would occasionally cause dropped samples on input.
2. Added support for fixed recording timing DMAV2PLUS firmware:
   AES16e: 14.1
   LT-TB: 6.2
   E44/E22: 2.1
3. Added support for non-mixable integer format. This allows applications to bypass the Float32 to SignedInt32 conversion (which is bit-perfect, so there is no sonic difference either way).
4. Includes Hilo Remote Version 1.0.12.
5. Added new signing certificate for OS X 10.9 and up.
6. Driver now supports OS X 10.9 to OS X 10.11.

1. Added support for DMAV2PLUS for AES16e/LT-TB/E44/E22.
   DMAV2PLUS supports the following features:
   - Smaller transfer sizes to reduce latency to under 1ms round-trip (96kHz, 32 sample buffer)
   DMAV2PLUS is supported with the following firmware:
   AES16e: 14.0
   LT-TB: 6.0
   E44/E22: 2.0
2. Added new controls in Lynx Mixer to support DMAV2PLUS. Settings > Advanced > Hardware Buffer Size. This settings should be left at 'Auto' unless you are working with Lynx Technical Support on a specific issue. Changing this control sets the amount of audio buffered in the hardware. The smaller the number the faster the CPU must respond to interrupts before audio breaks up.
3. Includes Hilo Remote Version 1.0.11.

1. Added support for 32-bit Kernel for OS X 10.6 and 10.7.
2. Fixed issue that caused Build 57 driver to not load properly on OS X 10.8.
3. Included Hilo Remote 1.0.0.8.

1. Added full support for E44 and E22 PCI Express cards.
2. Corrected issue with Hilo-TB where the delay compensation was off by 1 sample for input and output.
3. Included Hilo Remote 1.0.0.6.
4. Added support for 2, 4 and 8-channel modes (in addition to 16, 24 and 32) for AES16e and LT-TB.

1. Added full support for LT-TB Thunderbolt adapter for Aurora and Hilo converters.
2. Added new Lynx Mixer application which gives the following new features:
   • Tabs for each adapter installed instead of a separate floating window.
   • Adapter; Record and Play pane may be displayed
   • Rate Lock now available in OS X, which allows the sample rate to be fixed.
   • Mixer Lock now available in OS X, which keeps the user for accidentally changing any control.
   • Same look and feel for both Windows and OS X.
   • Saves scenes in a standard XML file which are no longer version or OS specific.
   • Added "Disable CPU Power Management" in driver which will turn off CPU power management whenever the driver is streaming. This may cause additional power draw for your computer while streaming audio, which may result in shorter on-battery time and higher heat generated. You may disable this new feature by un-checking the menu item while streaming is not active. If glitches in audio playback occur at higher sample rates or higher numbers of channels, we recommend leaving this item checked.
   • For the AES16e+Aurora combo, new Aurora menu items appear within the Settings menu. This replaces Aurora Remote Control which is no longer needed for the AES16e+Aurora combo.
   • New method for controlling the monitor sources.
   • Inputs and Outputs change name based on what is connected. For the AES16e by itself, I/O will be labeled as Digital In and Digital Out. For the AES16e+Aurora combo, I/O will be labeled as Analog In and Analog Out.
   • LS-ADAT fully supported with "ADAT Clock Source" selection in Settings Menu and LStream clock lockout for when the ADAT Clock Source is set to Slave.
   • For the Aurora-TB and AES16e+Aurora combo, the Adapter Settings dialog now flashes the front panel of the Aurora when each device is selected. This allows easy identification when selecting the order of the adapters.
3. When driver is operating in 16-channel mode, outputs 17-32 (AES16e: ADAT or AES50 / Aurora 16-TB: AES/EBU) are mirrored from the first 16-channels.
4. When setting up an aggregate device in Audio/MIDI Setup, it is important to: Clock all devices from the same source; Set the Sync Source in Lynx Mixer to External for all "slave" devices (please note setting the clock source in Audio/MIDI setup has been removed); Turn "Drift/Resample" off for all "slave" devices in Audio/MIDI setup.

1. Added full support for OS X 10.9 (Mavericks). Installer and driver are now digitally signed (which is required by OS X 10.9). Signed driver is installed in /Library/Extensions and unsigned driver is installed in /System/Library/Extensions (for OS X 10.6; 10.7 and 10.8) as required by Apple.
2. Channel mode and card order (for a multi-card system) can now be set from within Lynx Mixer. Lynx Mixer > Settings > Adapter Settings. Please note that you must restart the computer for these settings to take effect. You must have firmware version 12.11 on your AES16e for this to work properly.
3. Remove ability to control output volumes from Audio/MIDI Setup. If you need this capability, please use Build 54.
4. Changed where Lynx Mixer stores the last used scene for restart. It is now stored in the Home Folder/Library/Preferences.
5. Added complete support for Thunderbolt hot plug and unplug. Please note that for some Thunderbolt chassis, OS X 10.8.5 is required for hot plug to work properly.
6. The AES16e-50 card defaults now has the AES50 port routed for all of the inputs.

1. Added full support for OS X 10.8 (Mountain Lion). Installer is now digitally signed (which is required by OS X 10.8).
2. Installer can now change from one channel mode to another (16/24/32) without rebooting the computer. Please note that you may need to uninstall the previous driver using the Lynx OS X Driver Uninstaller (see link above) before installing this driver to allow the channel mode change without reboot feature to work properly.
3. Added support for 24-channel mode.
4. Lynx Mixer now supports 16/24/32-channel mode and shows all controls for each mode. The channel mode currently selected is shown in About Lynx Mixer.
5. Audio/MIDI Setup can now control the output volumes, output mutes, input mutes and feed-through mutes. This allows the user to change these controls without launching Lynx Mixer (and also allows applications other than Lynx Mixer to change these controls).
6. Lynx Mixer now saves/restores all 32-channels upon exiting Lynx Mixer which allows channels 17-32 to remember the input routing through a reboot.
7. Increased the number of active devices to match the maximum number of devices available (except for 4X rates where it maxes out at 8 devices / 16 channels). Previously it was set to 8; 8 and 4.

1. Added full support for Thunderbolt expansion chassis. Implements hot-plugging and unplugging as well as sleep mode. Please note that Thunderbolt expansion chassis with the Lynx Audio Card must be connected and enabled when powering on the Macintosh otherwise the boot-loader will not allocate resources for the device and the driver will not be able to load.
2. Defaulted "Allow Clock Source Change while Active" to TRUE. Previously this control might get set to FALSE when doing a Restore Defaults, which would keep some applications from being able to change the sample rate until the streaming was stopped.

1. Set "Allow Clock Source Change while Active" to TRUE when loading driver and starting streaming.

1. Internal Test Builds.

1. Added support for 64-bit kernel.
2. Removed "Output Select" from LS-ADAT page in Lynx Mixer when running with an AES16e.
3. Added additional error messages to the kernel.log (Applications > Utilities > Console > kernel.log) if the driver fails to load.v
4. This is an Intel Only Build compatible with OS X 10.6 (Snow Leopard) 32-bit and 64-bit kernel.

1. Added support for AES16e-50.
2. Added support for AES16e Firmware Build 11, which includes 64x32 mixer. Please note that driver defaults to 8 record and 8 play devices active so to use all 32-channels (16-devices) will require changing the Device Settings from within Lynx Mixer. Only the first 16-channels are routable on the Record/Play page (the top 16-channels are defaulted to LStream). Only the first 16-channels are routable on the Outputs page (the top 16-channels are defaulted to 1:1 from the play devices). This just means that it is not possible to do a record monitor (without software latency) on channels 17-32.
3. This is an Intel Only Build to make it compatible with OS X 10.6 (Snow Leopard) 32-bit kernel.

1. Fixed issue where Record Sources may be incorrectly listed as AES16 Digital Inputs instead of LynxTWO/L22 Inputs.
2. Removed MIDI Plugin.
3. This is an Intel Only Build to make it compatible with OS X 10.6 (Snow Leopard) 32-bit kernel.

1. Fixed issue where restoring scenes may cause kernel panic on LynxTWO/L22.

1. Added FWUpdate support for AES16e.
2. Fixed LynxTWORestoreSettings so it now runs on system startup.
3. Added About Box to Lynx Mixer. Please note when you open the About Box it places the text of the About Box into the clipboard so you can paste it to an email or our support forum without having to retype any information.
4. Fixed Sleep support so system can now go to Sleep and Resume from sleep without a Kernel Panic.
5. Fixed Sample Rate select control in Lynx Mixer so it always show the correct sample rate instead of occasionally being blank.
6. Renamed all devices (including MIDI) to show consistent device names.

1. No FWUpdate support for AES16e.
2. Fixed Logic 8 set 192kHz sample rate issue.
3. Included LynxRestoreSettings.
4. Saving scenes now saves all controls.

1. LynxRestoreSettings is not included.
2. Saving a scene in Lynx Mixer will not save all
of the controls. This just means that when you boot the Lynx Mixer will always start with the default settings..
3. Fixed Logic 8 set sample rate issue.
4. Updated Lynx Mixer AES16 Adapter page so status controls are color coded.
5. Fixed Lynx Mixer for PPC so font changes don't crash the program.
6. Fixed Interface to Aurora Remote so launching ARC will not Kernel Panic the computer.

1. Added support AES16e.
2. Universal Binary. Will work with either Intel or PPC Macintosh.

1. Added support for Aurora Remote and Aurora Update applications.
2. Renamed installer package to Lynx_OSX_xx.pkg.
3. Changed to ZIP file format for installer package.
4. Holding down the 'control' key while changing a main output volume now changes all 16 main output volumes together. The shift key still changes stereo pairs.
5. Holding down the 'control' key while selecting the monitor source or record source sets all the monitor sources to the right of the current control to next valid source.
6. Driver now supports both big endian and little endian firmware. This means if the Lynx PCI audio card already has Windows firmware on it, there is no need to update it to Macintosh firmware. All future firmware releases will be little endian (Windows) only. Please Note: This change allows the driver to use a Lynx PCI audio card with either Windows or Macintosh firmware. This driver will only work on a Macintosh with G5 and G4 processors, not Intel processors.
7. L2Update programs X21 and older will no longer function with this driver. If you must use an older L2Update program, first DesInstall this driver, restart the computer, run L2Update, power down then power back up and reinstall the driver.

1. Internal Test Build.

1. Fixed permissions issue for OSX 10.4 with StartupItems.
2. Fixed Recalibrate Converters button that was broken in Build 39.
3. Fixed audio erasure playback issue that was broken in Build 39. This would cause a 'stuttering' sound when multiple applications tried to playback audio from the same device (such as iTunes and Peak).
4. Fixed Restore Settings problem that may overwrite some trim controls values.
5. Fixed Restore Settings version so older settings files will no longer load.
6. Driver now only advertises to applications that the AES16 can do 32kHz to 192kHz. Previously the driver would advertise it could do 11.025 & 22.05kHz when it actually could not.

1. Changed how the Sample Clock Source selection works. Now, the control 'Preferred Clock Source' allows selection of the desired sample clock source. Once every 250 milliseconds (4 times a second) the sample clock source is evaluated by looking at the appropriate System Clock Rate (Frequency Counter next to the Preferred Clock Source selection button) to determine if the Preferred Clock Source is valid. If the clock source is valid, the driver switches the Sample Clock Source to the Preferred Clock Source. If at any time the Preferred Clock Source becomes invalid (clock cable disconnected, external gear that is feeding the clock is turned off), the driver changes the Sample Clock Source back to Internal, even if the card has a device that is actively playing or recording.
2. Removed the 'Sample Clock Reference' control as it was no longer needed because the driver automatically detects the different clock references (Word/Word256/13.5MHz/27MHz).
3. Added 'Rate Lock' control. Default is OFF. When ON, the driver will ignore all requests to change the Sample Clock Rate, including those coming from applications. The effectively causes all files not running at the currently selected clock rate to be software sample rate converted (if available) during playback/recording. When clocking to an external word clock, the Rate Lock function is effectively ON regardless of this switch setting, and the rate is locked to the same rate of the incoming word clock.
4. Fixed a problem on startup that would cause the driver to be out-of-sync with the hardware. This caused additional latency to be added to the audio stream.
5. Changed the number of transfers per interrupt from 2 to 8, which reduces the CPU load for processing interrupts.
6. Added output mixer source volume controls to Lynx Mixer Outputs page. This allows individual volume control over each source going to each output for custom mixes. Note: Holding down the shift key will change the volumes in stereo pairs.

1. The driver now recognizes Lynx L22 with serial numbers 230408XXXX and LynxTWO-A with serial numbers 200401XXXX as having the Rev A analog to digital converter chip. This corrects for a phase problem between channels 1 & 2 (and 3 & 4 on the LynxTWO-A) during recording. PLEASE NOTE: Only cards with these two specific serial number sequences would have exhibited any phase problems during recording and this driver corrects the issue.

1. Renamed 'LynxTWO Mixer' to 'Lynx Mixer'.
2. Fixed AES16-SRC Adapter Page in Lynx Mixer to correctly display SRC Enable & SRC Match Phase controls upon startup.
3. Lynx Mixer now saves the state of all the AES16 controls upon exiting and when saving a Scene.
4. Added Settings > Device Settings dialog box to Lynx Mixer to allow for configuration of the driver performance. PLEASE NOTE: The driver must not be active when making changes to the Device Settings dialog box. You must manually ensure the the transfer size set in the Lynx Mixer is less than or equal to the buffer size set in the application, otherwise audio break-up may occur. Reducing the number of active devices does not change how the driver appears inside an application, it only turns off the PCI Bus transfers for those devices - thus freeing the system to do other work.
5. Lynx Mixer now only shows the appropriate Settings menu items for the type of card in use.

1. First non-beta release of driver.
2. Added support for changing the sample clock source from within applications, such as Nuendo and Audio & MIDI Setup.
3. Put the maximum limit on number of devices at high sample rate (>96kHz) to 5 (giving 10in+10out channels).

1. Changed when the time stamp is reported to fix problem with larger record buffers and record buffer wrapping problem.

1. Changed how current position is reported to keep erase head getting too close to the playback head.
2. Added Restore Defaults to LynxTWO Mixer Application.

1. Complete rewrite of ISR and buffer handling to improve latency performance. Internal Release Only.

1. Changed how the DMA transfers are handled to improve reliability (GLIMIT to 256, SO to 256).

1. Fixed a problem that misreported the latency to CoreAudio.
2. Changed how the DMA transfers are handled to improve latency performance (GLIMIT to 32, SO to 32).
3. Changed the DMA buffer size to 16 x 256 sample-frames.
4. Fixed the LS-ADAT window to correctly display the position from the Sync In port.
5. Changed the frequency counters in the LynxTWO Mixer to show only one decimal point of accuracy in the kHz range.
6. Fixed a problem with the AES16-SRC Adapter Page that wouldn't allow enabling of the SRC Check Box.
7. Put the maximum limit on number of devices at high sample rate (>96kHz) to 2 (giving 4in+4out channels) as a temporary measure until the next rev of the driver.

1. Added support for the AES16 and AES16-SRC.

1. Put the maximum limit on number of devices at high sample rate (>96kHz) back to 4 (giving 8in+8out channels).

1. Changed the Record Source Menus to not show any check-marks.
2. Put the maximum limit on number of devices at high sample rate (>96kHz) to 5 (giving 10in+10out channels).

1. Added Record Source Lookup for Output Page in Lynx Mixer.

1. Record Sources Menu in Record/Play page is now adapter specific.

1. Fixed a problem that caused audio breakup at higher sample rates (>96kHz).

1. Increased the "tolerance" for overruns from 0 to 8.

1. Fixed a problem that caused the device to not play anything after using a high sampling rate (>96kHz).
2. Put the maximum limit on number of devices at high sample rate (>96kHz) to 4 (giving 8in+8out channels).
3. Improved overrun detection and recovery.

1. Changed the AudioEngine to only prepare and use 6 devices if sampling rate is above 96kHz.
2. Create just one multi-channel device to work around sample rate setting issue with Nuendo 2 & Cubase SX.

1. Small modification to installer package flags.
2. Changed the SetInterruptSamples to match the AddEntry buffer size.
3. Fix in control panel to reflect updated LTC Generator state.

1. Using the new HalMIDIDevice to fix timecode conversion.
2. Minor improvements in the mixer - Depth popup clipping fixed.
3. Set the dBScale bitmap transparency.

1. Under some circumstances the HAL MIDI device was not getting the start call.
2. Some changes to the MIDI Send procedure.
3. Added the MTC Source menu to the mixer.

1. The mixer windows are now staggered on the main screen so that you can immediately see multiple windows if there are multiple LynxTWOs in the machine.
2. The MIDI driver is now included with the installer.

1. Removed reading of Digital Input status on Adapter page to prevent Mixer from locking up certain Macs.

1. Added setting up the sample offset parameter (to help with noise).
2. Added Settings menu functionality.
3. Enabled Clock Sample Rate popup.
4. Added Play information to the Record/Play tab.
5. Fixed Overload counters that were not counting up.
6. Fixed Pressing X on the main window would not close the application.
7. Fixed LStream tabs that were not working.

1. Added ability to Load/Save Scenes.
2. Added code to save mixer settings on application close (that's used at bootup).
3. Changed the name of Inputs tab to Record/Play.
4. Added the dB scale display to Outputs and Record/Play page.
5. Changed the name (and functionality) of LS-AES tabs to indicate the LStream ports.
6. Centering window on startup.

1. Inputs page now active.
2. Outputs page now active.

1. Added code for supporting Mixer controls.
2. Added code to support Kext Interface versioning.
3. Improved time-stamping by taking one on entry to the ISR.
4. Added code to specify sample latency (safety offset).
5. Added LynxTWO Mixer with Adapter Page controls functional. LynxTWO Mixer is installed in the Applications Folder.
   Please Note: If you choose an Sample Clock Source other than Internal and then try to play/record something, you must manually insure that the Sample Clock Source has a valid clock running or CoreAudio will get corrupted and only a reboot will allow you to use the audio engine again.

1. Changed when the interrupt is enabled to prevent lockups on boot.

1. Using optimized float/int conversion routines.
2. Using the last input device for interrupt control/position report.
3. Added the user-mode interface so as to make it work with L2Update.

1. Now reporting position based on the "current" DMA buffer block only.
2. Using fewer interrupts.
3. Using the primary interrupt handler for all processing.
4. Added "names" (Play N, Record N) for Streams.
5. Over/under run recovery improvements.

1. Driver now has interrupts on only for the last device that is active. This reduces the number of interrupts on the PCI bus.

1. Added buffer overrun detection/recovery.
2. Changed the DMA buffer size to 8 x 256 sample-frames.

1. First public beta release of driver.

1. Supports E44/E22 Rev C cards.
2. MIDI interrupts now moved to a different thread.
3. Includes NControl 1.0.10.5.
4. Includes Hilo Remote 1.0.23.
5. Supports Big Sur, Monterey, Ventura and Sonoma.

1. Fixed issue for Intel build that caused a kernel panic when using non-DMA V2 firmware (AES16e: Firmware 12.11 or older). Non-DMA V2 firmware is not supported on Apple Silicon based computers (must use AES16e firmware 14.1).
2. Lynx Mixer "Rate Select" now changes with "Measured Rate".
3. Includes NControl 1.0.7.6 which now has MIDI Control Surface support.
4. Includes Hilo Remote 1.0.22.
5. Supports Big Sur and Monterey.

1. Fixed issue for Intel build that caused a kernel panic when using non-DMA V2 firmware (AES16e: Firmware 12.11 or older). Non-DMA V2 firmware is not supported on Apple Silicon based computers (must use AES16e firmware 14.1).
2. Lynx Mixer "Rate Select" now changes with "Measured Rate".
3. Includes NControl 1.0.7.6 which now has MIDI Control Surface support.
4. Includes Hilo Remote 1.0.22.
5. Supports Big Sur and Monterey.

1. Fixed issue where unplug or power off of Thunderbolt device would cause kernel panic on M1 Macintosh on macOS 12 Monterey (worked properly on Intel Big Sur/Monterey and M1 Big Sur).

1. Fixed issue where interrupts might be missed if NControl is running at same time as streaming.
2. Changed "Auto" Payload size to 32 on Apple Silicon M1 platform.

1. Added support for macOS 11 Big Sur. This driver only supports Big Sur and will not function on any previous macOS operating system.
2. Added support for Apple Silicon M1 platform. To install this driver on a Macintosh with an M1 processor, kernel extensions must be enabled manually in recovery mode. Please see the FAQ for step by step installation instructions.

1. Aurora(n)-TB, Aurora(n)-TB3, Hilo-TB, Hilo-TB3 now have the sample rate and sync source read from the device upon driver load so the device retains the sample rate and sync source, not the driver. This prevents a cable disconnection from overriding the sample rate or sync source stored on the device.
2. Lynx Mixer > Settings > Advanced > Adapter Settings > Channel Mode now controls the number of channels shown for a classic Aurora 8-TB where previously it was fixed at 16-channels. Channel Mode in Lynx Mixer for classic Aurora 8-TB now allows 2 thru 16-channels to be selected.

1. Added support for DB-ADAT connected to LM-DIG inside Aurora(n).
2. Added NControl to driver package.
   1. Supports DB-ADAT.
   2. Fixes issue with Mic Pre not showing Gain when in Hi-Z mode.
   3. Fixes issue with About box not showing driver version info properly.
3. Changed to "Packages.app" for installer to allow for notarization on Catalina
4. Added register update after card info write to prevent streaming issues after an EEPROM write.
5. Saves Hardware Payload Size in EEPROM instead of MixerState.xml so it is restored properly if the device is plugged in or turned on after the Mac has started.
6. Lynx Mixer now shows and can select clock sources for LM-DIG and/or DB-ADAT with Firmware 1.21 on Aurora(n).
7. Changed smallest Hardware Payload Size when on "Auto" to 8 (from 4).
8. Added NControl 1.0.0 to driver installation package. NControl will be installed into the /Applications folder and will automatically be launched if the user launches Lynx Mixer with an Aurora(n)-TB3 (which doesn't support Lynx Mixer).

1. Fixed issue with CARDID read on driver load that might cause firmware updates to timeout.

1. Fixed issue with Lynx Mixer not allowing mute changes for sources to anything other than Out 1&2 (introduced on 58G).

1. Driver and all applications are 64-bit and notarized by Apple for Mojave (10.14) and Catalina (10.15) and up.
2. Changed interface for FWUpdate to 64-bit. Older versions of FWUpdate will no longer function. User must use FWUpdate for 58G if a firmware update is required.
3. Sample offset fixed for Aurora(n)-TB. Added one sample for play and one sample for record.
4. Now includes Hilo Remote 1.0.19.
   1. Hilo Remote no longer automatically resizes the window based on the number of channels.
   2. Added "Advanced" menu option of connection method is Thunderbolt which may contain the following menu options depending on hardware configuration:
   1. Added "Adapter Settings" dialog to allow adapter settings previously only available with Lynx Mixer to be changed with Hilo Remote.
   2. Please note: This setting is for advanced use and normally should never need to be changed by the end user. Added "Hardware Payload Size". This should normally be left on "Auto" to allow the driver to determine the payload size (see note 5 below).
   3. Please note: This setting is for advanced use and normally should never need to be changed by the end user. Added "Show PCIe DMA Completion Latency". This option will temporarily display the PCI Express DMA completion latency on the toolbar while streaming. This setting is not saved so each launch of Hilo Remote will have this option unchecked. The latency value can be used in conjunction with the Settings > Advanced > Hardware Payload Size to insure glitch free streaming. The current maximum value will be displayed in both microseconds and samples (adjusted for the current sample rate). The Hardware Payload Size should always be double the worst-case latency number in samples. The software buffer size should always be a minimum of 4 times the Hardware Payload Size.
5. Changed how the Hardware Payload Size is automatically calculated. The default values are 8 samples for 44.1kHz and 48kHz; 16 for 88.2kHz and 96kHz; and 32 for 176.4kHz and 192kHz. If Advanced > Hardware Payload Size is set to "Auto", each time the streaming is stopped, the driver evaluates the computers performance and may set a new default Hardware Payload Size if the driver based on the that performance measurement. This may result in either a higher Hardware Payload Size being selected, or a lower Hardware Payload Size depending on the speed of the computers PCIe DMA Completion Latency value.
6. In Lynx Mixer: Changed "Hardware Buffer Size" to "Hardware Payload Size" to keep it from being confused with the software buffer size. This should normally be left on "Auto" to allow the driver to determine the payload size (see note 5 above).
7. Please note: This setting is for advanced use and normally should never need to be changed by the end user. In Lynx Mixer: Added "Show PCIe DMA Completion Latency". This option will temporarily display the PCI Express DMA completion latency on the toolbar while streaming. This setting is not saved so each launch of Lynx Mixer will have this option unchecked. The latency value can be used in conjunction with the Settings > Advanced > Hardware Payload Size to insure glitch free streaming. The current maximum value will be displayed in both microseconds and samples (adjusted for the current sample rate). The Hardware Payload Size should always be double the worst-case latency number in samples. The software buffer size should always be a minimum of 4 times the Hardware Payload Size.
8. In Lynx Mixer: Added the ability to change the Sync Source on the Aurora(n)-TB. Please note that Firmware 6.4 is required on the LT-TB for this to function properly.

1. Driver and all applications are now notarized by Apple for Mojave (10.14) and up.
2. Changed name of Hilo with LT-TB from "LT-TB" to "Hilo-TB".
3. All applications are now 64-bit to avoid warning on Mojave.
4. Transmit FIFO full check now performed for internal MIDI connection on LT-TB.
5. Sample offset fixed for LT-TB 5.5 firmware.

1. Added support for Aurora(n) with LM-DIG board.
2. Fixed issue for startup scene on certain configurations.
3. Driver now supports macOS 10.9 to macOS 10.13.

1. Added support for Aurora(n)-TB.

1. Added work-around for issue with DMAV2PLUS that would occasionally cause dropped samples on input.
2. Added support for fixed recording timing DMAV2PLUS firmware:
   AES16e: 14.1
   LT-TB: 6.2
   E44/E22: 2.1
3. Added support for non-mixable integer format. This allows applications to bypass the Float32 to SignedInt32 conversion (which is bit-perfect, so there is no sonic difference either way).
4. Includes Hilo Remote Version 1.0.12.
5. Added new signing certificate for OS X 10.9 and up.
6. Driver now supports OS X 10.9 to OS X 10.11.

1. Added support for DMAV2PLUS for AES16e/LT-TB/E44/E22.
   DMAV2PLUS supports the following features:
   - Smaller transfer sizes to reduce latency to under 1ms round-trip (96kHz, 32 sample buffer)
   DMAV2PLUS is supported with the following firmware:
   AES16e: 14.0
   LT-TB: 6.0
   E44/E22: 2.0
2. Added new controls in Lynx Mixer to support DMAV2PLUS. Settings > Advanced > Hardware Buffer Size. This settings should be left at 'Auto' unless you are working with Lynx Technical Support on a specific issue. Changing this control sets the amount of audio buffered in the hardware. The smaller the number the faster the CPU must respond to interrupts before audio breaks up.
3. Includes Hilo Remote Version 1.0.11.

1. Added support for 32-bit Kernel for OS X 10.6 and 10.7.
2. Fixed issue that caused Build 57 driver to not load properly on OS X 10.8.
3. Included Hilo Remote 1.0.0.8.

1. Added full support for E44 and E22 PCI Express cards.
2. Corrected issue with Hilo-TB where the delay compensation was off by 1 sample for input and output.
3. Included Hilo Remote 1.0.0.6.
4. Added support for 2, 4 and 8-channel modes (in addition to 16, 24 and 32) for AES16e and LT-TB.

1. Added full support for LT-TB Thunderbolt adapter for Aurora and Hilo converters.
2. Added new Lynx Mixer application which gives the following new features:
   • Tabs for each adapter installed instead of a separate floating window.
   • Adapter; Record and Play pane may be displayed
   • Rate Lock now available in OS X, which allows the sample rate to be fixed.
   • Mixer Lock now available in OS X, which keeps the user for accidentally changing any control.
   • Same look and feel for both Windows and OS X.
   • Saves scenes in a standard XML file which are no longer version or OS specific.
   • Added "Disable CPU Power Management" in driver which will turn off CPU power management whenever the driver is streaming. This may cause additional power draw for your computer while streaming audio, which may result in shorter on-battery time and higher heat generated. You may disable this new feature by un-checking the menu item while streaming is not active. If glitches in audio playback occur at higher sample rates or higher numbers of channels, we recommend leaving this item checked.
   • For the AES16e+Aurora combo, new Aurora menu items appear within the Settings menu. This replaces Aurora Remote Control which is no longer needed for the AES16e+Aurora combo.
   • New method for controlling the monitor sources.
   • Inputs and Outputs change name based on what is connected. For the AES16e by itself, I/O will be labeled as Digital In and Digital Out. For the AES16e+Aurora combo, I/O will be labeled as Analog In and Analog Out.
   • LS-ADAT fully supported with "ADAT Clock Source" selection in Settings Menu and LStream clock lockout for when the ADAT Clock Source is set to Slave.
   • For the Aurora-TB and AES16e+Aurora combo, the Adapter Settings dialog now flashes the front panel of the Aurora when each device is selected. This allows easy identification when selecting the order of the adapters.
3. When driver is operating in 16-channel mode, outputs 17-32 (AES16e: ADAT or AES50 / Aurora 16-TB: AES/EBU) are mirrored from the first 16-channels.
4. When setting up an aggregate device in Audio/MIDI Setup, it is important to: Clock all devices from the same source; Set the Sync Source in Lynx Mixer to External for all "slave" devices (please note setting the clock source in Audio/MIDI setup has been removed); Turn "Drift/Resample" off for all "slave" devices in Audio/MIDI setup.

1. Added full support for OS X 10.9 (Mavericks). Installer and driver are now digitally signed (which is required by OS X 10.9). Signed driver is installed in /Library/Extensions and unsigned driver is installed in /System/Library/Extensions (for OS X 10.6; 10.7 and 10.8) as required by Apple.
2. Channel mode and card order (for a multi-card system) can now be set from within Lynx Mixer. Lynx Mixer > Settings > Adapter Settings. Please note that you must restart the computer for these settings to take effect. You must have firmware version 12.11 on your AES16e for this to work properly.
3. Remove ability to control output volumes from Audio/MIDI Setup. If you need this capability, please use Build 54.
4. Changed where Lynx Mixer stores the last used scene for restart. It is now stored in the Home Folder/Library/Preferences.
5. Added complete support for Thunderbolt hot plug and unplug. Please note that for some Thunderbolt chassis, OS X 10.8.5 is required for hot plug to work properly.
6. The AES16e-50 card defaults now has the AES50 port routed for all of the inputs.

1. Added full support for OS X 10.8 (Mountain Lion). Installer is now digitally signed (which is required by OS X 10.8).
2. Installer can now change from one channel mode to another (16/24/32) without rebooting the computer. Please note that you may need to uninstall the previous driver using the Lynx OS X Driver Uninstaller (see link above) before installing this driver to allow the channel mode change without reboot feature to work properly.
3. Added support for 24-channel mode.
4. Lynx Mixer now supports 16/24/32-channel mode and shows all controls for each mode. The channel mode currently selected is shown in About Lynx Mixer.
5. Audio/MIDI Setup can now control the output volumes, output mutes, input mutes and feed-through mutes. This allows the user to change these controls without launching Lynx Mixer (and also allows applications other than Lynx Mixer to change these controls).
6. Lynx Mixer now saves/restores all 32-channels upon exiting Lynx Mixer which allows channels 17-32 to remember the input routing through a reboot.
7. Increased the number of active devices to match the maximum number of devices available (except for 4X rates where it maxes out at 8 devices / 16 channels). Previously it was set to 8; 8 and 4.

1. Added full support for Thunderbolt expansion chassis. Implements hot-plugging and unplugging as well as sleep mode. Please note that Thunderbolt expansion chassis with the Lynx Audio Card must be connected and enabled when powering on the Macintosh otherwise the boot-loader will not allocate resources for the device and the driver will not be able to load.
2. Defaulted "Allow Clock Source Change while Active" to TRUE. Previously this control might get set to FALSE when doing a Restore Defaults, which would keep some applications from being able to change the sample rate until the streaming was stopped.

1. Set "Allow Clock Source Change while Active" to TRUE when loading driver and starting streaming.

1. Internal Test Builds.

1. Added support for 64-bit kernel.
2. Removed "Output Select" from LS-ADAT page in Lynx Mixer when running with an AES16e.
3. Added additional error messages to the kernel.log (Applications > Utilities > Console > kernel.log) if the driver fails to load.v
4. This is an Intel Only Build compatible with OS X 10.6 (Snow Leopard) 32-bit and 64-bit kernel.

1. Added support for AES16e-50.
2. Added support for AES16e Firmware Build 11, which includes 64x32 mixer. Please note that driver defaults to 8 record and 8 play devices active so to use all 32-channels (16-devices) will require changing the Device Settings from within Lynx Mixer. Only the first 16-channels are routable on the Record/Play page (the top 16-channels are defaulted to LStream). Only the first 16-channels are routable on the Outputs page (the top 16-channels are defaulted to 1:1 from the play devices). This just means that it is not possible to do a record monitor (without software latency) on channels 17-32.
3. This is an Intel Only Build to make it compatible with OS X 10.6 (Snow Leopard) 32-bit kernel.

1. Fixed issue where Record Sources may be incorrectly listed as AES16 Digital Inputs instead of LynxTWO/L22 Inputs.
2. Removed MIDI Plugin.
3. This is an Intel Only Build to make it compatible with OS X 10.6 (Snow Leopard) 32-bit kernel.

1. Fixed issue where restoring scenes may cause kernel panic on LynxTWO/L22.

1. Added FWUpdate support for AES16e.
2. Fixed LynxTWORestoreSettings so it now runs on system startup.
3. Added About Box to Lynx Mixer. Please note when you open the About Box it places the text of the About Box into the clipboard so you can paste it to an email or our support forum without having to retype any information.
4. Fixed Sleep support so system can now go to Sleep and Resume from sleep without a Kernel Panic.
5. Fixed Sample Rate select control in Lynx Mixer so it always show the correct sample rate instead of occasionally being blank.
6. Renamed all devices (including MIDI) to show consistent device names.

1. No FWUpdate support for AES16e.
2. Fixed Logic 8 set 192kHz sample rate issue.
3. Included LynxRestoreSettings.
4. Saving scenes now saves all controls.

1. LynxRestoreSettings is not included.
2. Saving a scene in Lynx Mixer will not save all
of the controls. This just means that when you boot the Lynx Mixer will always start with the default settings..
3. Fixed Logic 8 set sample rate issue.
4. Updated Lynx Mixer AES16 Adapter page so status controls are color coded.
5. Fixed Lynx Mixer for PPC so font changes don't crash the program.
6. Fixed Interface to Aurora Remote so launching ARC will not Kernel Panic the computer.

1. Added support AES16e.
2. Universal Binary. Will work with either Intel or PPC Macintosh.

1. Added support for Aurora Remote and Aurora Update applications.
2. Renamed installer package to Lynx_OSX_xx.pkg.
3. Changed to ZIP file format for installer package.
4. Holding down the 'control' key while changing a main output volume now changes all 16 main output volumes together. The shift key still changes stereo pairs.
5. Holding down the 'control' key while selecting the monitor source or record source sets all the monitor sources to the right of the current control to next valid source.
6. Driver now supports both big endian and little endian firmware. This means if the Lynx PCI audio card already has Windows firmware on it, there is no need to update it to Macintosh firmware. All future firmware releases will be little endian (Windows) only. Please Note: This change allows the driver to use a Lynx PCI audio card with either Windows or Macintosh firmware. This driver will only work on a Macintosh with G5 and G4 processors, not Intel processors.
7. L2Update programs X21 and older will no longer function with this driver. If you must use an older L2Update program, first DesInstall this driver, restart the computer, run L2Update, power down then power back up and reinstall the driver.

1. Internal Test Build.

1. Fixed permissions issue for OSX 10.4 with StartupItems.
2. Fixed Recalibrate Converters button that was broken in Build 39.
3. Fixed audio erasure playback issue that was broken in Build 39. This would cause a 'stuttering' sound when multiple applications tried to playback audio from the same device (such as iTunes and Peak).
4. Fixed Restore Settings problem that may overwrite some trim controls values.
5. Fixed Restore Settings version so older settings files will no longer load.
6. Driver now only advertises to applications that the AES16 can do 32kHz to 192kHz. Previously the driver would advertise it could do 11.025 & 22.05kHz when it actually could not.

1. Changed how the Sample Clock Source selection works. Now, the control 'Preferred Clock Source' allows selection of the desired sample clock source. Once every 250 milliseconds (4 times a second) the sample clock source is evaluated by looking at the appropriate System Clock Rate (Frequency Counter next to the Preferred Clock Source selection button) to determine if the Preferred Clock Source is valid. If the clock source is valid, the driver switches the Sample Clock Source to the Preferred Clock Source. If at any time the Preferred Clock Source becomes invalid (clock cable disconnected, external gear that is feeding the clock is turned off), the driver changes the Sample Clock Source back to Internal, even if the card has a device that is actively playing or recording.
2. Removed the 'Sample Clock Reference' control as it was no longer needed because the driver automatically detects the different clock references (Word/Word256/13.5MHz/27MHz).
3. Added 'Rate Lock' control. Default is OFF. When ON, the driver will ignore all requests to change the Sample Clock Rate, including those coming from applications. The effectively causes all files not running at the currently selected clock rate to be software sample rate converted (if available) during playback/recording. When clocking to an external word clock, the Rate Lock function is effectively ON regardless of this switch setting, and the rate is locked to the same rate of the incoming word clock.
4. Fixed a problem on startup that would cause the driver to be out-of-sync with the hardware. This caused additional latency to be added to the audio stream.
5. Changed the number of transfers per interrupt from 2 to 8, which reduces the CPU load for processing interrupts.
6. Added output mixer source volume controls to Lynx Mixer Outputs page. This allows individual volume control over each source going to each output for custom mixes. Note: Holding down the shift key will change the volumes in stereo pairs.

1. The driver now recognizes Lynx L22 with serial numbers 230408XXXX and LynxTWO-A with serial numbers 200401XXXX as having the Rev A analog to digital converter chip. This corrects for a phase problem between channels 1 & 2 (and 3 & 4 on the LynxTWO-A) during recording. PLEASE NOTE: Only cards with these two specific serial number sequences would have exhibited any phase problems during recording and this driver corrects the issue.

1. Renamed 'LynxTWO Mixer' to 'Lynx Mixer'.
2. Fixed AES16-SRC Adapter Page in Lynx Mixer to correctly display SRC Enable & SRC Match Phase controls upon startup.
3. Lynx Mixer now saves the state of all the AES16 controls upon exiting and when saving a Scene.
4. Added Settings > Device Settings dialog box to Lynx Mixer to allow for configuration of the driver performance. PLEASE NOTE: The driver must not be active when making changes to the Device Settings dialog box. You must manually ensure the the transfer size set in the Lynx Mixer is less than or equal to the buffer size set in the application, otherwise audio break-up may occur. Reducing the number of active devices does not change how the driver appears inside an application, it only turns off the PCI Bus transfers for those devices - thus freeing the system to do other work.
5. Lynx Mixer now only shows the appropriate Settings menu items for the type of card in use.

1. First non-beta release of driver.
2. Added support for changing the sample clock source from within applications, such as Nuendo and Audio & MIDI Setup.
3. Put the maximum limit on number of devices at high sample rate (>96kHz) to 5 (giving 10in+10out channels).

1. Changed when the time stamp is reported to fix problem with larger record buffers and record buffer wrapping problem.

1. Changed how current position is reported to keep erase head getting too close to the playback head.
2. Added Restore Defaults to LynxTWO Mixer Application.

1. Complete rewrite of ISR and buffer handling to improve latency performance. Internal Release Only.

1. Changed how the DMA transfers are handled to improve reliability (GLIMIT to 256, SO to 256).

1. Fixed a problem that misreported the latency to CoreAudio.
2. Changed how the DMA transfers are handled to improve latency performance (GLIMIT to 32, SO to 32).
3. Changed the DMA buffer size to 16 x 256 sample-frames.
4. Fixed the LS-ADAT window to correctly display the position from the Sync In port.
5. Changed the frequency counters in the LynxTWO Mixer to show only one decimal point of accuracy in the kHz range.
6. Fixed a problem with the AES16-SRC Adapter Page that wouldn't allow enabling of the SRC Check Box.
7. Put the maximum limit on number of devices at high sample rate (>96kHz) to 2 (giving 4in+4out channels) as a temporary measure until the next rev of the driver.

1. Added support for the AES16 and AES16-SRC.

1. Put the maximum limit on number of devices at high sample rate (>96kHz) back to 4 (giving 8in+8out channels).

1. Changed the Record Source Menus to not show any check-marks.
2. Put the maximum limit on number of devices at high sample rate (>96kHz) to 5 (giving 10in+10out channels).

1. Added Record Source Lookup for Output Page in Lynx Mixer.

1. Record Sources Menu in Record/Play page is now adapter specific.

1. Fixed a problem that caused audio breakup at higher sample rates (>96kHz).

1. Increased the "tolerance" for overruns from 0 to 8.

1. Fixed a problem that caused the device to not play anything after using a high sampling rate (>96kHz).
2. Put the maximum limit on number of devices at high sample rate (>96kHz) to 4 (giving 8in+8out channels).
3. Improved overrun detection and recovery.

1. Changed the AudioEngine to only prepare and use 6 devices if sampling rate is above 96kHz.
2. Create just one multi-channel device to work around sample rate setting issue with Nuendo 2 & Cubase SX.

1. Small modification to installer package flags.
2. Changed the SetInterruptSamples to match the AddEntry buffer size.
3. Fix in control panel to reflect updated LTC Generator state.

1. Using the new HalMIDIDevice to fix timecode conversion.
2. Minor improvements in the mixer - Depth popup clipping fixed.
3. Set the dBScale bitmap transparency.

1. Under some circumstances the HAL MIDI device was not getting the start call.
2. Some changes to the MIDI Send procedure.
3. Added the MTC Source menu to the mixer.

1. The mixer windows are now staggered on the main screen so that you can immediately see multiple windows if there are multiple LynxTWOs in the machine.
2. The MIDI driver is now included with the installer.

1. Removed reading of Digital Input status on Adapter page to prevent Mixer from locking up certain Macs.

1. Added setting up the sample offset parameter (to help with noise).
2. Added Settings menu functionality.
3. Enabled Clock Sample Rate popup.
4. Added Play information to the Record/Play tab.
5. Fixed Overload counters that were not counting up.
6. Fixed Pressing X on the main window would not close the application.
7. Fixed LStream tabs that were not working.

1. Added ability to Load/Save Scenes.
2. Added code to save mixer settings on application close (that's used at bootup).
3. Changed the name of Inputs tab to Record/Play.
4. Added the dB scale display to Outputs and Record/Play page.
5. Changed the name (and functionality) of LS-AES tabs to indicate the LStream ports.
6. Centering window on startup.

1. Inputs page now active.
2. Outputs page now active.

1. Added code for supporting Mixer controls.
2. Added code to support Kext Interface versioning.
3. Improved time-stamping by taking one on entry to the ISR.
4. Added code to specify sample latency (safety offset).
5. Added LynxTWO Mixer with Adapter Page controls functional. LynxTWO Mixer is installed in the Applications Folder.
   Please Note: If you choose an Sample Clock Source other than Internal and then try to play/record something, you must manually insure that the Sample Clock Source has a valid clock running or CoreAudio will get corrupted and only a reboot will allow you to use the audio engine again.

1. Changed when the interrupt is enabled to prevent lockups on boot.

1. Using optimized float/int conversion routines.
2. Using the last input device for interrupt control/position report.
3. Added the user-mode interface so as to make it work with L2Update.

1. Now reporting position based on the "current" DMA buffer block only.
2. Using fewer interrupts.
3. Using the primary interrupt handler for all processing.
4. Added "names" (Play N, Record N) for Streams.
5. Over/under run recovery improvements.

1. Driver now has interrupts on only for the last device that is active. This reduces the number of interrupts on the PCI bus.

1. Added buffer overrun detection/recovery.
2. Changed the DMA buffer size to 8 x 256 sample-frames.

1. First public beta release of driver.

1. Supports E44/E22 Rev C cards.
2. MIDI interrupts now moved to a different thread.
3. Includes NControl 1.0.10.5.
4. Includes Hilo Remote 1.0.23.
5. Supports Big Sur, Monterey, Ventura and Sonoma.

1. Fixed issue for Intel build that caused a kernel panic when using non-DMA V2 firmware (AES16e: Firmware 12.11 or older). Non-DMA V2 firmware is not supported on Apple Silicon based computers (must use AES16e firmware 14.1).
2. Lynx Mixer "Rate Select" now changes with "Measured Rate".
3. Includes NControl 1.0.7.6 which now has MIDI Control Surface support.
4. Includes Hilo Remote 1.0.22.
5. Supports Big Sur and Monterey.

1. Fixed issue for Intel build that caused a kernel panic when using non-DMA V2 firmware (AES16e: Firmware 12.11 or older). Non-DMA V2 firmware is not supported on Apple Silicon based computers (must use AES16e firmware 14.1).
2. Lynx Mixer "Rate Select" now changes with "Measured Rate".
3. Includes NControl 1.0.7.6 which now has MIDI Control Surface support.
4. Includes Hilo Remote 1.0.22.
5. Supports Big Sur and Monterey.

1. Fixed issue where unplug or power off of Thunderbolt device would cause kernel panic on M1 Macintosh on macOS 12 Monterey (worked properly on Intel Big Sur/Monterey and M1 Big Sur).

1. Fixed issue where interrupts might be missed if NControl is running at same time as streaming.
2. Changed "Auto" Payload size to 32 on Apple Silicon M1 platform.

1. Added support for macOS 11 Big Sur. This driver only supports Big Sur and will not function on any previous macOS operating system.
2. Added support for Apple Silicon M1 platform. To install this driver on a Macintosh with an M1 processor, kernel extensions must be enabled manually in recovery mode. Please see the FAQ for step by step installation instructions.

1. Aurora(n)-TB, Aurora(n)-TB3, Hilo-TB, Hilo-TB3 now have the sample rate and sync source read from the device upon driver load so the device retains the sample rate and sync source, not the driver. This prevents a cable disconnection from overriding the sample rate or sync source stored on the device.
2. Lynx Mixer > Settings > Advanced > Adapter Settings > Channel Mode now controls the number of channels shown for a classic Aurora 8-TB where previously it was fixed at 16-channels. Channel Mode in Lynx Mixer for classic Aurora 8-TB now allows 2 thru 16-channels to be selected.

1. Added support for DB-ADAT connected to LM-DIG inside Aurora(n).
2. Added NControl to driver package.
   1. Supports DB-ADAT.
   2. Fixes issue with Mic Pre not showing Gain when in Hi-Z mode.
   3. Fixes issue with About box not showing driver version info properly.
3. Changed to "Packages.app" for installer to allow for notarization on Catalina
4. Added register update after card info write to prevent streaming issues after an EEPROM write.
5. Saves Hardware Payload Size in EEPROM instead of MixerState.xml so it is restored properly if the device is plugged in or turned on after the Mac has started.
6. Lynx Mixer now shows and can select clock sources for LM-DIG and/or DB-ADAT with Firmware 1.21 on Aurora(n).
7. Changed smallest Hardware Payload Size when on "Auto" to 8 (from 4).
8. Added NControl 1.0.0 to driver installation package. NControl will be installed into the /Applications folder and will automatically be launched if the user launches Lynx Mixer with an Aurora(n)-TB3 (which doesn't support Lynx Mixer).

1. Fixed issue with CARDID read on driver load that might cause firmware updates to timeout.

1. Fixed issue with Lynx Mixer not allowing mute changes for sources to anything other than Out 1&2 (introduced on 58G).

1. Driver and all applications are 64-bit and notarized by Apple for Mojave (10.14) and Catalina (10.15) and up.
2. Changed interface for FWUpdate to 64-bit. Older versions of FWUpdate will no longer function. User must use FWUpdate for 58G if a firmware update is required.
3. Sample offset fixed for Aurora(n)-TB. Added one sample for play and one sample for record.
4. Now includes Hilo Remote 1.0.19.
   1. Hilo Remote no longer automatically resizes the window based on the number of channels.
   2. Added "Advanced" menu option of connection method is Thunderbolt which may contain the following menu options depending on hardware configuration:
   1. Added "Adapter Settings" dialog to allow adapter settings previously only available with Lynx Mixer to be changed with Hilo Remote.
   2. Please note: This setting is for advanced use and normally should never need to be changed by the end user. Added "Hardware Payload Size". This should normally be left on "Auto" to allow the driver to determine the payload size (see note 5 below).
   3. Please note: This setting is for advanced use and normally should never need to be changed by the end user. Added "Show PCIe DMA Completion Latency". This option will temporarily display the PCI Express DMA completion latency on the toolbar while streaming. This setting is not saved so each launch of Hilo Remote will have this option unchecked. The latency value can be used in conjunction with the Settings > Advanced > Hardware Payload Size to insure glitch free streaming. The current maximum value will be displayed in both microseconds and samples (adjusted for the current sample rate). The Hardware Payload Size should always be double the worst-case latency number in samples. The software buffer size should always be a minimum of 4 times the Hardware Payload Size.
5. Changed how the Hardware Payload Size is automatically calculated. The default values are 8 samples for 44.1kHz and 48kHz; 16 for 88.2kHz and 96kHz; and 32 for 176.4kHz and 192kHz. If Advanced > Hardware Payload Size is set to "Auto", each time the streaming is stopped, the driver evaluates the computers performance and may set a new default Hardware Payload Size if the driver based on the that performance measurement. This may result in either a higher Hardware Payload Size being selected, or a lower Hardware Payload Size depending on the speed of the computers PCIe DMA Completion Latency value.
6. In Lynx Mixer: Changed "Hardware Buffer Size" to "Hardware Payload Size" to keep it from being confused with the software buffer size. This should normally be left on "Auto" to allow the driver to determine the payload size (see note 5 above).
7. Please note: This setting is for advanced use and normally should never need to be changed by the end user. In Lynx Mixer: Added "Show PCIe DMA Completion Latency". This option will temporarily display the PCI Express DMA completion latency on the toolbar while streaming. This setting is not saved so each launch of Lynx Mixer will have this option unchecked. The latency value can be used in conjunction with the Settings > Advanced > Hardware Payload Size to insure glitch free streaming. The current maximum value will be displayed in both microseconds and samples (adjusted for the current sample rate). The Hardware Payload Size should always be double the worst-case latency number in samples. The software buffer size should always be a minimum of 4 times the Hardware Payload Size.
8. In Lynx Mixer: Added the ability to change the Sync Source on the Aurora(n)-TB. Please note that Firmware 6.4 is required on the LT-TB for this to function properly.

1. Driver and all applications are now notarized by Apple for Mojave (10.14) and up.
2. Changed name of Hilo with LT-TB from "LT-TB" to "Hilo-TB".
3. All applications are now 64-bit to avoid warning on Mojave.
4. Transmit FIFO full check now performed for internal MIDI connection on LT-TB.
5. Sample offset fixed for LT-TB 5.5 firmware.

1. Added support for Aurora(n) with LM-DIG board.
2. Fixed issue for startup scene on certain configurations.
3. Driver now supports macOS 10.9 to macOS 10.13.

1. Added support for Aurora(n)-TB.

1. Added work-around for issue with DMAV2PLUS that would occasionally cause dropped samples on input.
2. Added support for fixed recording timing DMAV2PLUS firmware:
   AES16e: 14.1
   LT-TB: 6.2
   E44/E22: 2.1
3. Added support for non-mixable integer format. This allows applications to bypass the Float32 to SignedInt32 conversion (which is bit-perfect, so there is no sonic difference either way).
4. Includes Hilo Remote Version 1.0.12.
5. Added new signing certificate for OS X 10.9 and up.
6. Driver now supports OS X 10.9 to OS X 10.11.

1. Added support for DMAV2PLUS for AES16e/LT-TB/E44/E22.
   DMAV2PLUS supports the following features:
   - Smaller transfer sizes to reduce latency to under 1ms round-trip (96kHz, 32 sample buffer)
   DMAV2PLUS is supported with the following firmware:
   AES16e: 14.0
   LT-TB: 6.0
   E44/E22: 2.0
2. Added new controls in Lynx Mixer to support DMAV2PLUS. Settings > Advanced > Hardware Buffer Size. This settings should be left at 'Auto' unless you are working with Lynx Technical Support on a specific issue. Changing this control sets the amount of audio buffered in the hardware. The smaller the number the faster the CPU must respond to interrupts before audio breaks up.
3. Includes Hilo Remote Version 1.0.11.

1. Added support for 32-bit Kernel for OS X 10.6 and 10.7.
2. Fixed issue that caused Build 57 driver to not load properly on OS X 10.8.
3. Included Hilo Remote 1.0.0.8.

1. Added full support for E44 and E22 PCI Express cards.
2. Corrected issue with Hilo-TB where the delay compensation was off by 1 sample for input and output.
3. Included Hilo Remote 1.0.0.6.
4. Added support for 2, 4 and 8-channel modes (in addition to 16, 24 and 32) for AES16e and LT-TB.

1. Added full support for LT-TB Thunderbolt adapter for Aurora and Hilo converters.
2. Added new Lynx Mixer application which gives the following new features:
   • Tabs for each adapter installed instead of a separate floating window.
   • Adapter; Record and Play pane may be displayed
   • Rate Lock now available in OS X, which allows the sample rate to be fixed.
   • Mixer Lock now available in OS X, which keeps the user for accidentally changing any control.
   • Same look and feel for both Windows and OS X.
   • Saves scenes in a standard XML file which are no longer version or OS specific.
   • Added "Disable CPU Power Management" in driver which will turn off CPU power management whenever the driver is streaming. This may cause additional power draw for your computer while streaming audio, which may result in shorter on-battery time and higher heat generated. You may disable this new feature by un-checking the menu item while streaming is not active. If glitches in audio playback occur at higher sample rates or higher numbers of channels, we recommend leaving this item checked.
   • For the AES16e+Aurora combo, new Aurora menu items appear within the Settings menu. This replaces Aurora Remote Control which is no longer needed for the AES16e+Aurora combo.
   • New method for controlling the monitor sources.
   • Inputs and Outputs change name based on what is connected. For the AES16e by itself, I/O will be labeled as Digital In and Digital Out. For the AES16e+Aurora combo, I/O will be labeled as Analog In and Analog Out.
   • LS-ADAT fully supported with "ADAT Clock Source" selection in Settings Menu and LStream clock lockout for when the ADAT Clock Source is set to Slave.
   • For the Aurora-TB and AES16e+Aurora combo, the Adapter Settings dialog now flashes the front panel of the Aurora when each device is selected. This allows easy identification when selecting the order of the adapters.
3. When driver is operating in 16-channel mode, outputs 17-32 (AES16e: ADAT or AES50 / Aurora 16-TB: AES/EBU) are mirrored from the first 16-channels.
4. When setting up an aggregate device in Audio/MIDI Setup, it is important to: Clock all devices from the same source; Set the Sync Source in Lynx Mixer to External for all "slave" devices (please note setting the clock source in Audio/MIDI setup has been removed); Turn "Drift/Resample" off for all "slave" devices in Audio/MIDI setup.

1. Added full support for OS X 10.9 (Mavericks). Installer and driver are now digitally signed (which is required by OS X 10.9). Signed driver is installed in /Library/Extensions and unsigned driver is installed in /System/Library/Extensions (for OS X 10.6; 10.7 and 10.8) as required by Apple.
2. Channel mode and card order (for a multi-card system) can now be set from within Lynx Mixer. Lynx Mixer > Settings > Adapter Settings. Please note that you must restart the computer for these settings to take effect. You must have firmware version 12.11 on your AES16e for this to work properly.
3. Remove ability to control output volumes from Audio/MIDI Setup. If you need this capability, please use Build 54.
4. Changed where Lynx Mixer stores the last used scene for restart. It is now stored in the Home Folder/Library/Preferences.
5. Added complete support for Thunderbolt hot plug and unplug. Please note that for some Thunderbolt chassis, OS X 10.8.5 is required for hot plug to work properly.
6. The AES16e-50 card defaults now has the AES50 port routed for all of the inputs.

1. Added full support for OS X 10.8 (Mountain Lion). Installer is now digitally signed (which is required by OS X 10.8).
2. Installer can now change from one channel mode to another (16/24/32) without rebooting the computer. Please note that you may need to uninstall the previous driver using the Lynx OS X Driver Uninstaller (see link above) before installing this driver to allow the channel mode change without reboot feature to work properly.
3. Added support for 24-channel mode.
4. Lynx Mixer now supports 16/24/32-channel mode and shows all controls for each mode. The channel mode currently selected is shown in About Lynx Mixer.
5. Audio/MIDI Setup can now control the output volumes, output mutes, input mutes and feed-through mutes. This allows the user to change these controls without launching Lynx Mixer (and also allows applications other than Lynx Mixer to change these controls).
6. Lynx Mixer now saves/restores all 32-channels upon exiting Lynx Mixer which allows channels 17-32 to remember the input routing through a reboot.
7. Increased the number of active devices to match the maximum number of devices available (except for 4X rates where it maxes out at 8 devices / 16 channels). Previously it was set to 8; 8 and 4.

1. Added full support for Thunderbolt expansion chassis. Implements hot-plugging and unplugging as well as sleep mode. Please note that Thunderbolt expansion chassis with the Lynx Audio Card must be connected and enabled when powering on the Macintosh otherwise the boot-loader will not allocate resources for the device and the driver will not be able to load.
2. Defaulted "Allow Clock Source Change while Active" to TRUE. Previously this control might get set to FALSE when doing a Restore Defaults, which would keep some applications from being able to change the sample rate until the streaming was stopped.

1. Set "Allow Clock Source Change while Active" to TRUE when loading driver and starting streaming.

1. Internal Test Builds.

1. Added support for 64-bit kernel.
2. Removed "Output Select" from LS-ADAT page in Lynx Mixer when running with an AES16e.
3. Added additional error messages to the kernel.log (Applications > Utilities > Console > kernel.log) if the driver fails to load.v
4. This is an Intel Only Build compatible with OS X 10.6 (Snow Leopard) 32-bit and 64-bit kernel.

1. Added support for AES16e-50.
2. Added support for AES16e Firmware Build 11, which includes 64x32 mixer. Please note that driver defaults to 8 record and 8 play devices active so to use all 32-channels (16-devices) will require changing the Device Settings from within Lynx Mixer. Only the first 16-channels are routable on the Record/Play page (the top 16-channels are defaulted to LStream). Only the first 16-channels are routable on the Outputs page (the top 16-channels are defaulted to 1:1 from the play devices). This just means that it is not possible to do a record monitor (without software latency) on channels 17-32.
3. This is an Intel Only Build to make it compatible with OS X 10.6 (Snow Leopard) 32-bit kernel.

1. Fixed issue where Record Sources may be incorrectly listed as AES16 Digital Inputs instead of LynxTWO/L22 Inputs.
2. Removed MIDI Plugin.
3. This is an Intel Only Build to make it compatible with OS X 10.6 (Snow Leopard) 32-bit kernel.

1. Fixed issue where restoring scenes may cause kernel panic on LynxTWO/L22.

1. Added FWUpdate support for AES16e.
2. Fixed LynxTWORestoreSettings so it now runs on system startup.
3. Added About Box to Lynx Mixer. Please note when you open the About Box it places the text of the About Box into the clipboard so you can paste it to an email or our support forum without having to retype any information.
4. Fixed Sleep support so system can now go to Sleep and Resume from sleep without a Kernel Panic.
5. Fixed Sample Rate select control in Lynx Mixer so it always show the correct sample rate instead of occasionally being blank.
6. Renamed all devices (including MIDI) to show consistent device names.

1. No FWUpdate support for AES16e.
2. Fixed Logic 8 set 192kHz sample rate issue.
3. Included LynxRestoreSettings.
4. Saving scenes now saves all controls.

1. LynxRestoreSettings is not included.
2. Saving a scene in Lynx Mixer will not save all
of the controls. This just means that when you boot the Lynx Mixer will always start with the default settings..
3. Fixed Logic 8 set sample rate issue.
4. Updated Lynx Mixer AES16 Adapter page so status controls are color coded.
5. Fixed Lynx Mixer for PPC so font changes don't crash the program.
6. Fixed Interface to Aurora Remote so launching ARC will not Kernel Panic the computer.

1. Added support AES16e.
2. Universal Binary. Will work with either Intel or PPC Macintosh.

1. Added support for Aurora Remote and Aurora Update applications.
2. Renamed installer package to Lynx_OSX_xx.pkg.
3. Changed to ZIP file format for installer package.
4. Holding down the 'control' key while changing a main output volume now changes all 16 main output volumes together. The shift key still changes stereo pairs.
5. Holding down the 'control' key while selecting the monitor source or record source sets all the monitor sources to the right of the current control to next valid source.
6. Driver now supports both big endian and little endian firmware. This means if the Lynx PCI audio card already has Windows firmware on it, there is no need to update it to Macintosh firmware. All future firmware releases will be little endian (Windows) only. Please Note: This change allows the driver to use a Lynx PCI audio card with either Windows or Macintosh firmware. This driver will only work on a Macintosh with G5 and G4 processors, not Intel processors.
7. L2Update programs X21 and older will no longer function with this driver. If you must use an older L2Update program, first DesInstall this driver, restart the computer, run L2Update, power down then power back up and reinstall the driver.

1. Internal Test Build.

1. Fixed permissions issue for OSX 10.4 with StartupItems.
2. Fixed Recalibrate Converters button that was broken in Build 39.
3. Fixed audio erasure playback issue that was broken in Build 39. This would cause a 'stuttering' sound when multiple applications tried to playback audio from the same device (such as iTunes and Peak).
4. Fixed Restore Settings problem that may overwrite some trim controls values.
5. Fixed Restore Settings version so older settings files will no longer load.
6. Driver now only advertises to applications that the AES16 can do 32kHz to 192kHz. Previously the driver would advertise it could do 11.025 & 22.05kHz when it actually could not.

1. Changed how the Sample Clock Source selection works. Now, the control 'Preferred Clock Source' allows selection of the desired sample clock source. Once every 250 milliseconds (4 times a second) the sample clock source is evaluated by looking at the appropriate System Clock Rate (Frequency Counter next to the Preferred Clock Source selection button) to determine if the Preferred Clock Source is valid. If the clock source is valid, the driver switches the Sample Clock Source to the Preferred Clock Source. If at any time the Preferred Clock Source becomes invalid (clock cable disconnected, external gear that is feeding the clock is turned off), the driver changes the Sample Clock Source back to Internal, even if the card has a device that is actively playing or recording.
2. Removed the 'Sample Clock Reference' control as it was no longer needed because the driver automatically detects the different clock references (Word/Word256/13.5MHz/27MHz).
3. Added 'Rate Lock' control. Default is OFF. When ON, the driver will ignore all requests to change the Sample Clock Rate, including those coming from applications. The effectively causes all files not running at the currently selected clock rate to be software sample rate converted (if available) during playback/recording. When clocking to an external word clock, the Rate Lock function is effectively ON regardless of this switch setting, and the rate is locked to the same rate of the incoming word clock.
4. Fixed a problem on startup that would cause the driver to be out-of-sync with the hardware. This caused additional latency to be added to the audio stream.
5. Changed the number of transfers per interrupt from 2 to 8, which reduces the CPU load for processing interrupts.
6. Added output mixer source volume controls to Lynx Mixer Outputs page. This allows individual volume control over each source going to each output for custom mixes. Note: Holding down the shift key will change the volumes in stereo pairs.

1. The driver now recognizes Lynx L22 with serial numbers 230408XXXX and LynxTWO-A with serial numbers 200401XXXX as having the Rev A analog to digital converter chip. This corrects for a phase problem between channels 1 & 2 (and 3 & 4 on the LynxTWO-A) during recording. PLEASE NOTE: Only cards with these two specific serial number sequences would have exhibited any phase problems during recording and this driver corrects the issue.

1. Renamed 'LynxTWO Mixer' to 'Lynx Mixer'.
2. Fixed AES16-SRC Adapter Page in Lynx Mixer to correctly display SRC Enable & SRC Match Phase controls upon startup.
3. Lynx Mixer now saves the state of all the AES16 controls upon exiting and when saving a Scene.
4. Added Settings > Device Settings dialog box to Lynx Mixer to allow for configuration of the driver performance. PLEASE NOTE: The driver must not be active when making changes to the Device Settings dialog box. You must manually ensure the the transfer size set in the Lynx Mixer is less than or equal to the buffer size set in the application, otherwise audio break-up may occur. Reducing the number of active devices does not change how the driver appears inside an application, it only turns off the PCI Bus transfers for those devices - thus freeing the system to do other work.
5. Lynx Mixer now only shows the appropriate Settings menu items for the type of card in use.

1. First non-beta release of driver.
2. Added support for changing the sample clock source from within applications, such as Nuendo and Audio & MIDI Setup.
3. Put the maximum limit on number of devices at high sample rate (>96kHz) to 5 (giving 10in+10out channels).

1. Changed when the time stamp is reported to fix problem with larger record buffers and record buffer wrapping problem.

1. Changed how current position is reported to keep erase head getting too close to the playback head.
2. Added Restore Defaults to LynxTWO Mixer Application.

1. Complete rewrite of ISR and buffer handling to improve latency performance. Internal Release Only.

1. Changed how the DMA transfers are handled to improve reliability (GLIMIT to 256, SO to 256).

1. Fixed a problem that misreported the latency to CoreAudio.
2. Changed how the DMA transfers are handled to improve latency performance (GLIMIT to 32, SO to 32).
3. Changed the DMA buffer size to 16 x 256 sample-frames.
4. Fixed the LS-ADAT window to correctly display the position from the Sync In port.
5. Changed the frequency counters in the LynxTWO Mixer to show only one decimal point of accuracy in the kHz range.
6. Fixed a problem with the AES16-SRC Adapter Page that wouldn't allow enabling of the SRC Check Box.
7. Put the maximum limit on number of devices at high sample rate (>96kHz) to 2 (giving 4in+4out channels) as a temporary measure until the next rev of the driver.

1. Added support for the AES16 and AES16-SRC.

1. Put the maximum limit on number of devices at high sample rate (>96kHz) back to 4 (giving 8in+8out channels).

1. Changed the Record Source Menus to not show any check-marks.
2. Put the maximum limit on number of devices at high sample rate (>96kHz) to 5 (giving 10in+10out channels).

1. Added Record Source Lookup for Output Page in Lynx Mixer.

1. Record Sources Menu in Record/Play page is now adapter specific.

1. Fixed a problem that caused audio breakup at higher sample rates (>96kHz).

1. Increased the "tolerance" for overruns from 0 to 8.

1. Fixed a problem that caused the device to not play anything after using a high sampling rate (>96kHz).
2. Put the maximum limit on number of devices at high sample rate (>96kHz) to 4 (giving 8in+8out channels).
3. Improved overrun detection and recovery.

1. Changed the AudioEngine to only prepare and use 6 devices if sampling rate is above 96kHz.
2. Create just one multi-channel device to work around sample rate setting issue with Nuendo 2 & Cubase SX.

1. Small modification to installer package flags.
2. Changed the SetInterruptSamples to match the AddEntry buffer size.
3. Fix in control panel to reflect updated LTC Generator state.

1. Using the new HalMIDIDevice to fix timecode conversion.
2. Minor improvements in the mixer - Depth popup clipping fixed.
3. Set the dBScale bitmap transparency.

1. Under some circumstances the HAL MIDI device was not getting the start call.
2. Some changes to the MIDI Send procedure.
3. Added the MTC Source menu to the mixer.

1. The mixer windows are now staggered on the main screen so that you can immediately see multiple windows if there are multiple LynxTWOs in the machine.
2. The MIDI driver is now included with the installer.

1. Removed reading of Digital Input status on Adapter page to prevent Mixer from locking up certain Macs.

1. Added setting up the sample offset parameter (to help with noise).
2. Added Settings menu functionality.
3. Enabled Clock Sample Rate popup.
4. Added Play information to the Record/Play tab.
5. Fixed Overload counters that were not counting up.
6. Fixed Pressing X on the main window would not close the application.
7. Fixed LStream tabs that were not working.

1. Added ability to Load/Save Scenes.
2. Added code to save mixer settings on application close (that's used at bootup).
3. Changed the name of Inputs tab to Record/Play.
4. Added the dB scale display to Outputs and Record/Play page.
5. Changed the name (and functionality) of LS-AES tabs to indicate the LStream ports.
6. Centering window on startup.

1. Inputs page now active.
2. Outputs page now active.

1. Added code for supporting Mixer controls.
2. Added code to support Kext Interface versioning.
3. Improved time-stamping by taking one on entry to the ISR.
4. Added code to specify sample latency (safety offset).
5. Added LynxTWO Mixer with Adapter Page controls functional. LynxTWO Mixer is installed in the Applications Folder.
   Please Note: If you choose an Sample Clock Source other than Internal and then try to play/record something, you must manually insure that the Sample Clock Source has a valid clock running or CoreAudio will get corrupted and only a reboot will allow you to use the audio engine again.

1. Changed when the interrupt is enabled to prevent lockups on boot.

1. Using optimized float/int conversion routines.
2. Using the last input device for interrupt control/position report.
3. Added the user-mode interface so as to make it work with L2Update.

1. Now reporting position based on the "current" DMA buffer block only.
2. Using fewer interrupts.
3. Using the primary interrupt handler for all processing.
4. Added "names" (Play N, Record N) for Streams.
5. Over/under run recovery improvements.

1. Driver now has interrupts on only for the last device that is active. This reduces the number of interrupts on the PCI bus.

1. Added buffer overrun detection/recovery.
2. Changed the DMA buffer size to 8 x 256 sample-frames.

1. First public beta release of driver.

1. Supports E44/E22 Rev C cards.
2. MIDI interrupts now moved to a different thread.
3. Includes NControl 1.0.10.5.
4. Includes Hilo Remote 1.0.23.
5. Supports Big Sur, Monterey, Ventura and Sonoma.

1. Fixed issue for Intel build that caused a kernel panic when using non-DMA V2 firmware (AES16e: Firmware 12.11 or older). Non-DMA V2 firmware is not supported on Apple Silicon based computers (must use AES16e firmware 14.1).
2. Lynx Mixer "Rate Select" now changes with "Measured Rate".
3. Includes NControl 1.0.7.6 which now has MIDI Control Surface support.
4. Includes Hilo Remote 1.0.22.
5. Supports Big Sur and Monterey.

1. Fixed issue for Intel build that caused a kernel panic when using non-DMA V2 firmware (AES16e: Firmware 12.11 or older). Non-DMA V2 firmware is not supported on Apple Silicon based computers (must use AES16e firmware 14.1).
2. Lynx Mixer "Rate Select" now changes with "Measured Rate".
3. Includes NControl 1.0.7.6 which now has MIDI Control Surface support.
4. Includes Hilo Remote 1.0.22.
5. Supports Big Sur and Monterey.

1. Fixed issue where unplug or power off of Thunderbolt device would cause kernel panic on M1 Macintosh on macOS 12 Monterey (worked properly on Intel Big Sur/Monterey and M1 Big Sur).

1. Fixed issue where interrupts might be missed if NControl is running at same time as streaming.
2. Changed "Auto" Payload size to 32 on Apple Silicon M1 platform.

1. Added support for macOS 11 Big Sur. This driver only supports Big Sur and will not function on any previous macOS operating system.
2. Added support for Apple Silicon M1 platform. To install this driver on a Macintosh with an M1 processor, kernel extensions must be enabled manually in recovery mode. Please see the FAQ for step by step installation instructions.

1. Aurora(n)-TB, Aurora(n)-TB3, Hilo-TB, Hilo-TB3 now have the sample rate and sync source read from the device upon driver load so the device retains the sample rate and sync source, not the driver. This prevents a cable disconnection from overriding the sample rate or sync source stored on the device.
2. Lynx Mixer > Settings > Advanced > Adapter Settings > Channel Mode now controls the number of channels shown for a classic Aurora 8-TB where previously it was fixed at 16-channels. Channel Mode in Lynx Mixer for classic Aurora 8-TB now allows 2 thru 16-channels to be selected.

1. Added support for DB-ADAT connected to LM-DIG inside Aurora(n).
2. Added NControl to driver package.
   1. Supports DB-ADAT.
   2. Fixes issue with Mic Pre not showing Gain when in Hi-Z mode.
   3. Fixes issue with About box not showing driver version info properly.
3. Changed to "Packages.app" for installer to allow for notarization on Catalina
4. Added register update after card info write to prevent streaming issues after an EEPROM write.
5. Saves Hardware Payload Size in EEPROM instead of MixerState.xml so it is restored properly if the device is plugged in or turned on after the Mac has started.
6. Lynx Mixer now shows and can select clock sources for LM-DIG and/or DB-ADAT with Firmware 1.21 on Aurora(n).
7. Changed smallest Hardware Payload Size when on "Auto" to 8 (from 4).
8. Added NControl 1.0.0 to driver installation package. NControl will be installed into the /Applications folder and will automatically be launched if the user launches Lynx Mixer with an Aurora(n)-TB3 (which doesn't support Lynx Mixer).

1. Fixed issue with CARDID read on driver load that might cause firmware updates to timeout.

1. Fixed issue with Lynx Mixer not allowing mute changes for sources to anything other than Out 1&2 (introduced on 58G).

1. Driver and all applications are 64-bit and notarized by Apple for Mojave (10.14) and Catalina (10.15) and up.
2. Changed interface for FWUpdate to 64-bit. Older versions of FWUpdate will no longer function. User must use FWUpdate for 58G if a firmware update is required.
3. Sample offset fixed for Aurora(n)-TB. Added one sample for play and one sample for record.
4. Now includes Hilo Remote 1.0.19.
   1. Hilo Remote no longer automatically resizes the window based on the number of channels.
   2. Added "Advanced" menu option of connection method is Thunderbolt which may contain the following menu options depending on hardware configuration:
   1. Added "Adapter Settings" dialog to allow adapter settings previously only available with Lynx Mixer to be changed with Hilo Remote.
   2. Please note: This setting is for advanced use and normally should never need to be changed by the end user. Added "Hardware Payload Size". This should normally be left on "Auto" to allow the driver to determine the payload size (see note 5 below).
   3. Please note: This setting is for advanced use and normally should never need to be changed by the end user. Added "Show PCIe DMA Completion Latency". This option will temporarily display the PCI Express DMA completion latency on the toolbar while streaming. This setting is not saved so each launch of Hilo Remote will have this option unchecked. The latency value can be used in conjunction with the Settings > Advanced > Hardware Payload Size to insure glitch free streaming. The current maximum value will be displayed in both microseconds and samples (adjusted for the current sample rate). The Hardware Payload Size should always be double the worst-case latency number in samples. The software buffer size should always be a minimum of 4 times the Hardware Payload Size.
5. Changed how the Hardware Payload Size is automatically calculated. The default values are 8 samples for 44.1kHz and 48kHz; 16 for 88.2kHz and 96kHz; and 32 for 176.4kHz and 192kHz. If Advanced > Hardware Payload Size is set to "Auto", each time the streaming is stopped, the driver evaluates the computers performance and may set a new default Hardware Payload Size if the driver based on the that performance measurement. This may result in either a higher Hardware Payload Size being selected, or a lower Hardware Payload Size depending on the speed of the computers PCIe DMA Completion Latency value.
6. In Lynx Mixer: Changed "Hardware Buffer Size" to "Hardware Payload Size" to keep it from being confused with the software buffer size. This should normally be left on "Auto" to allow the driver to determine the payload size (see note 5 above).
7. Please note: This setting is for advanced use and normally should never need to be changed by the end user. In Lynx Mixer: Added "Show PCIe DMA Completion Latency". This option will temporarily display the PCI Express DMA completion latency on the toolbar while streaming. This setting is not saved so each launch of Lynx Mixer will have this option unchecked. The latency value can be used in conjunction with the Settings > Advanced > Hardware Payload Size to insure glitch free streaming. The current maximum value will be displayed in both microseconds and samples (adjusted for the current sample rate). The Hardware Payload Size should always be double the worst-case latency number in samples. The software buffer size should always be a minimum of 4 times the Hardware Payload Size.
8. In Lynx Mixer: Added the ability to change the Sync Source on the Aurora(n)-TB. Please note that Firmware 6.4 is required on the LT-TB for this to function properly.

1. Driver and all applications are now notarized by Apple for Mojave (10.14) and up.
2. Changed name of Hilo with LT-TB from "LT-TB" to "Hilo-TB".
3. All applications are now 64-bit to avoid warning on Mojave.
4. Transmit FIFO full check now performed for internal MIDI connection on LT-TB.
5. Sample offset fixed for LT-TB 5.5 firmware.

1. Added support for Aurora(n) with LM-DIG board.
2. Fixed issue for startup scene on certain configurations.
3. Driver now supports macOS 10.9 to macOS 10.13.

1. Added support for Aurora(n)-TB.

1. Added work-around for issue with DMAV2PLUS that would occasionally cause dropped samples on input.
2. Added support for fixed recording timing DMAV2PLUS firmware:
   AES16e: 14.1
   LT-TB: 6.2
   E44/E22: 2.1
3. Added support for non-mixable integer format. This allows applications to bypass the Float32 to SignedInt32 conversion (which is bit-perfect, so there is no sonic difference either way).
4. Includes Hilo Remote Version 1.0.12.
5. Added new signing certificate for OS X 10.9 and up.
6. Driver now supports OS X 10.9 to OS X 10.11.

1. Added support for DMAV2PLUS for AES16e/LT-TB/E44/E22.
   DMAV2PLUS supports the following features:
   - Smaller transfer sizes to reduce latency to under 1ms round-trip (96kHz, 32 sample buffer)
   DMAV2PLUS is supported with the following firmware:
   AES16e: 14.0
   LT-TB: 6.0
   E44/E22: 2.0
2. Added new controls in Lynx Mixer to support DMAV2PLUS. Settings > Advanced > Hardware Buffer Size. This settings should be left at 'Auto' unless you are working with Lynx Technical Support on a specific issue. Changing this control sets the amount of audio buffered in the hardware. The smaller the number the faster the CPU must respond to interrupts before audio breaks up.
3. Includes Hilo Remote Version 1.0.11.

1. Added support for 32-bit Kernel for OS X 10.6 and 10.7.
2. Fixed issue that caused Build 57 driver to not load properly on OS X 10.8.
3. Included Hilo Remote 1.0.0.8.

1. Added full support for E44 and E22 PCI Express cards.
2. Corrected issue with Hilo-TB where the delay compensation was off by 1 sample for input and output.
3. Included Hilo Remote 1.0.0.6.
4. Added support for 2, 4 and 8-channel modes (in addition to 16, 24 and 32) for AES16e and LT-TB.

1. Added full support for LT-TB Thunderbolt adapter for Aurora and Hilo converters.
2. Added new Lynx Mixer application which gives the following new features:
   • Tabs for each adapter installed instead of a separate floating window.
   • Adapter; Record and Play pane may be displayed
   • Rate Lock now available in OS X, which allows the sample rate to be fixed.
   • Mixer Lock now available in OS X, which keeps the user for accidentally changing any control.
   • Same look and feel for both Windows and OS X.
   • Saves scenes in a standard XML file which are no longer version or OS specific.
   • Added "Disable CPU Power Management" in driver which will turn off CPU power management whenever the driver is streaming. This may cause additional power draw for your computer while streaming audio, which may result in shorter on-battery time and higher heat generated. You may disable this new feature by un-checking the menu item while streaming is not active. If glitches in audio playback occur at higher sample rates or higher numbers of channels, we recommend leaving this item checked.
   • For the AES16e+Aurora combo, new Aurora menu items appear within the Settings menu. This replaces Aurora Remote Control which is no longer needed for the AES16e+Aurora combo.
   • New method for controlling the monitor sources.
   • Inputs and Outputs change name based on what is connected. For the AES16e by itself, I/O will be labeled as Digital In and Digital Out. For the AES16e+Aurora combo, I/O will be labeled as Analog In and Analog Out.
   • LS-ADAT fully supported with "ADAT Clock Source" selection in Settings Menu and LStream clock lockout for when the ADAT Clock Source is set to Slave.
   • For the Aurora-TB and AES16e+Aurora combo, the Adapter Settings dialog now flashes the front panel of the Aurora when each device is selected. This allows easy identification when selecting the order of the adapters.
3. When driver is operating in 16-channel mode, outputs 17-32 (AES16e: ADAT or AES50 / Aurora 16-TB: AES/EBU) are mirrored from the first 16-channels.
4. When setting up an aggregate device in Audio/MIDI Setup, it is important to: Clock all devices from the same source; Set the Sync Source in Lynx Mixer to External for all "slave" devices (please note setting the clock source in Audio/MIDI setup has been removed); Turn "Drift/Resample" off for all "slave" devices in Audio/MIDI setup.

1. Added full support for OS X 10.9 (Mavericks). Installer and driver are now digitally signed (which is required by OS X 10.9). Signed driver is installed in /Library/Extensions and unsigned driver is installed in /System/Library/Extensions (for OS X 10.6; 10.7 and 10.8) as required by Apple.
2. Channel mode and card order (for a multi-card system) can now be set from within Lynx Mixer. Lynx Mixer > Settings > Adapter Settings. Please note that you must restart the computer for these settings to take effect. You must have firmware version 12.11 on your AES16e for this to work properly.
3. Remove ability to control output volumes from Audio/MIDI Setup. If you need this capability, please use Build 54.
4. Changed where Lynx Mixer stores the last used scene for restart. It is now stored in the Home Folder/Library/Preferences.
5. Added complete support for Thunderbolt hot plug and unplug. Please note that for some Thunderbolt chassis, OS X 10.8.5 is required for hot plug to work properly.
6. The AES16e-50 card defaults now has the AES50 port routed for all of the inputs.

1. Added full support for OS X 10.8 (Mountain Lion). Installer is now digitally signed (which is required by OS X 10.8).
2. Installer can now change from one channel mode to another (16/24/32) without rebooting the computer. Please note that you may need to uninstall the previous driver using the Lynx OS X Driver Uninstaller (see link above) before installing this driver to allow the channel mode change without reboot feature to work properly.
3. Added support for 24-channel mode.
4. Lynx Mixer now supports 16/24/32-channel mode and shows all controls for each mode. The channel mode currently selected is shown in About Lynx Mixer.
5. Audio/MIDI Setup can now control the output volumes, output mutes, input mutes and feed-through mutes. This allows the user to change these controls without launching Lynx Mixer (and also allows applications other than Lynx Mixer to change these controls).
6. Lynx Mixer now saves/restores all 32-channels upon exiting Lynx Mixer which allows channels 17-32 to remember the input routing through a reboot.
7. Increased the number of active devices to match the maximum number of devices available (except for 4X rates where it maxes out at 8 devices / 16 channels). Previously it was set to 8; 8 and 4.

1. Added full support for Thunderbolt expansion chassis. Implements hot-plugging and unplugging as well as sleep mode. Please note that Thunderbolt expansion chassis with the Lynx Audio Card must be connected and enabled when powering on the Macintosh otherwise the boot-loader will not allocate resources for the device and the driver will not be able to load.
2. Defaulted "Allow Clock Source Change while Active" to TRUE. Previously this control might get set to FALSE when doing a Restore Defaults, which would keep some applications from being able to change the sample rate until the streaming was stopped.

1. Set "Allow Clock Source Change while Active" to TRUE when loading driver and starting streaming.

1. Internal Test Builds.

1. Added support for 64-bit kernel.
2. Removed "Output Select" from LS-ADAT page in Lynx Mixer when running with an AES16e.
3. Added additional error messages to the kernel.log (Applications > Utilities > Console > kernel.log) if the driver fails to load.v
4. This is an Intel Only Build compatible with OS X 10.6 (Snow Leopard) 32-bit and 64-bit kernel.

1. Added support for AES16e-50.
2. Added support for AES16e Firmware Build 11, which includes 64x32 mixer. Please note that driver defaults to 8 record and 8 play devices active so to use all 32-channels (16-devices) will require changing the Device Settings from within Lynx Mixer. Only the first 16-channels are routable on the Record/Play page (the top 16-channels are defaulted to LStream). Only the first 16-channels are routable on the Outputs page (the top 16-channels are defaulted to 1:1 from the play devices). This just means that it is not possible to do a record monitor (without software latency) on channels 17-32.
3. This is an Intel Only Build to make it compatible with OS X 10.6 (Snow Leopard) 32-bit kernel.

1. Fixed issue where Record Sources may be incorrectly listed as AES16 Digital Inputs instead of LynxTWO/L22 Inputs.
2. Removed MIDI Plugin.
3. This is an Intel Only Build to make it compatible with OS X 10.6 (Snow Leopard) 32-bit kernel.

1. Fixed issue where restoring scenes may cause kernel panic on LynxTWO/L22.

1. Added FWUpdate support for AES16e.
2. Fixed LynxTWORestoreSettings so it now runs on system startup.
3. Added About Box to Lynx Mixer. Please note when you open the About Box it places the text of the About Box into the clipboard so you can paste it to an email or our support forum without having to retype any information.
4. Fixed Sleep support so system can now go to Sleep and Resume from sleep without a Kernel Panic.
5. Fixed Sample Rate select control in Lynx Mixer so it always show the correct sample rate instead of occasionally being blank.
6. Renamed all devices (including MIDI) to show consistent device names.

1. No FWUpdate support for AES16e.
2. Fixed Logic 8 set 192kHz sample rate issue.
3. Included LynxRestoreSettings.
4. Saving scenes now saves all controls.

1. LynxRestoreSettings is not included.
2. Saving a scene in Lynx Mixer will not save all
of the controls. This just means that when you boot the Lynx Mixer will always start with the default settings..
3. Fixed Logic 8 set sample rate issue.
4. Updated Lynx Mixer AES16 Adapter page so status controls are color coded.
5. Fixed Lynx Mixer for PPC so font changes don't crash the program.
6. Fixed Interface to Aurora Remote so launching ARC will not Kernel Panic the computer.

1. Added support AES16e.
2. Universal Binary. Will work with either Intel or PPC Macintosh.

1. Added support for Aurora Remote and Aurora Update applications.
2. Renamed installer package to Lynx_OSX_xx.pkg.
3. Changed to ZIP file format for installer package.
4. Holding down the 'control' key while changing a main output volume now changes all 16 main output volumes together. The shift key still changes stereo pairs.
5. Holding down the 'control' key while selecting the monitor source or record source sets all the monitor sources to the right of the current control to next valid source.
6. Driver now supports both big endian and little endian firmware. This means if the Lynx PCI audio card already has Windows firmware on it, there is no need to update it to Macintosh firmware. All future firmware releases will be little endian (Windows) only. Please Note: This change allows the driver to use a Lynx PCI audio card with either Windows or Macintosh firmware. This driver will only work on a Macintosh with G5 and G4 processors, not Intel processors.
7. L2Update programs X21 and older will no longer function with this driver. If you must use an older L2Update program, first DesInstall this driver, restart the computer, run L2Update, power down then power back up and reinstall the driver.

1. Internal Test Build.

1. Fixed permissions issue for OSX 10.4 with StartupItems.
2. Fixed Recalibrate Converters button that was broken in Build 39.
3. Fixed audio erasure playback issue that was broken in Build 39. This would cause a 'stuttering' sound when multiple applications tried to playback audio from the same device (such as iTunes and Peak).
4. Fixed Restore Settings problem that may overwrite some trim controls values.
5. Fixed Restore Settings version so older settings files will no longer load.
6. Driver now only advertises to applications that the AES16 can do 32kHz to 192kHz. Previously the driver would advertise it could do 11.025 & 22.05kHz when it actually could not.

1. Changed how the Sample Clock Source selection works. Now, the control 'Preferred Clock Source' allows selection of the desired sample clock source. Once every 250 milliseconds (4 times a second) the sample clock source is evaluated by looking at the appropriate System Clock Rate (Frequency Counter next to the Preferred Clock Source selection button) to determine if the Preferred Clock Source is valid. If the clock source is valid, the driver switches the Sample Clock Source to the Preferred Clock Source. If at any time the Preferred Clock Source becomes invalid (clock cable disconnected, external gear that is feeding the clock is turned off), the driver changes the Sample Clock Source back to Internal, even if the card has a device that is actively playing or recording.
2. Removed the 'Sample Clock Reference' control as it was no longer needed because the driver automatically detects the different clock references (Word/Word256/13.5MHz/27MHz).
3. Added 'Rate Lock' control. Default is OFF. When ON, the driver will ignore all requests to change the Sample Clock Rate, including those coming from applications. The effectively causes all files not running at the currently selected clock rate to be software sample rate converted (if available) during playback/recording. When clocking to an external word clock, the Rate Lock function is effectively ON regardless of this switch setting, and the rate is locked to the same rate of the incoming word clock.
4. Fixed a problem on startup that would cause the driver to be out-of-sync with the hardware. This caused additional latency to be added to the audio stream.
5. Changed the number of transfers per interrupt from 2 to 8, which reduces the CPU load for processing interrupts.
6. Added output mixer source volume controls to Lynx Mixer Outputs page. This allows individual volume control over each source going to each output for custom mixes. Note: Holding down the shift key will change the volumes in stereo pairs.

1. The driver now recognizes Lynx L22 with serial numbers 230408XXXX and LynxTWO-A with serial numbers 200401XXXX as having the Rev A analog to digital converter chip. This corrects for a phase problem between channels 1 & 2 (and 3 & 4 on the LynxTWO-A) during recording. PLEASE NOTE: Only cards with these two specific serial number sequences would have exhibited any phase problems during recording and this driver corrects the issue.

1. Renamed 'LynxTWO Mixer' to 'Lynx Mixer'.
2. Fixed AES16-SRC Adapter Page in Lynx Mixer to correctly display SRC Enable & SRC Match Phase controls upon startup.
3. Lynx Mixer now saves the state of all the AES16 controls upon exiting and when saving a Scene.
4. Added Settings > Device Settings dialog box to Lynx Mixer to allow for configuration of the driver performance. PLEASE NOTE: The driver must not be active when making changes to the Device Settings dialog box. You must manually ensure the the transfer size set in the Lynx Mixer is less than or equal to the buffer size set in the application, otherwise audio break-up may occur. Reducing the number of active devices does not change how the driver appears inside an application, it only turns off the PCI Bus transfers for those devices - thus freeing the system to do other work.
5. Lynx Mixer now only shows the appropriate Settings menu items for the type of card in use.

1. First non-beta release of driver.
2. Added support for changing the sample clock source from within applications, such as Nuendo and Audio & MIDI Setup.
3. Put the maximum limit on number of devices at high sample rate (>96kHz) to 5 (giving 10in+10out channels).

1. Changed when the time stamp is reported to fix problem with larger record buffers and record buffer wrapping problem.

1. Changed how current position is reported to keep erase head getting too close to the playback head.
2. Added Restore Defaults to LynxTWO Mixer Application.

1. Complete rewrite of ISR and buffer handling to improve latency performance. Internal Release Only.

1. Changed how the DMA transfers are handled to improve reliability (GLIMIT to 256, SO to 256).

1. Fixed a problem that misreported the latency to CoreAudio.
2. Changed how the DMA transfers are handled to improve latency performance (GLIMIT to 32, SO to 32).
3. Changed the DMA buffer size to 16 x 256 sample-frames.
4. Fixed the LS-ADAT window to correctly display the position from the Sync In port.
5. Changed the frequency counters in the LynxTWO Mixer to show only one decimal point of accuracy in the kHz range.
6. Fixed a problem with the AES16-SRC Adapter Page that wouldn't allow enabling of the SRC Check Box.
7. Put the maximum limit on number of devices at high sample rate (>96kHz) to 2 (giving 4in+4out channels) as a temporary measure until the next rev of the driver.

1. Added support for the AES16 and AES16-SRC.

1. Put the maximum limit on number of devices at high sample rate (>96kHz) back to 4 (giving 8in+8out channels).

1. Changed the Record Source Menus to not show any check-marks.
2. Put the maximum limit on number of devices at high sample rate (>96kHz) to 5 (giving 10in+10out channels).

1. Added Record Source Lookup for Output Page in Lynx Mixer.

1. Record Sources Menu in Record/Play page is now adapter specific.

1. Fixed a problem that caused audio breakup at higher sample rates (>96kHz).

1. Increased the "tolerance" for overruns from 0 to 8.

1. Fixed a problem that caused the device to not play anything after using a high sampling rate (>96kHz).
2. Put the maximum limit on number of devices at high sample rate (>96kHz) to 4 (giving 8in+8out channels).
3. Improved overrun detection and recovery.

1. Changed the AudioEngine to only prepare and use 6 devices if sampling rate is above 96kHz.
2. Create just one multi-channel device to work around sample rate setting issue with Nuendo 2 & Cubase SX.

1. Small modification to installer package flags.
2. Changed the SetInterruptSamples to match the AddEntry buffer size.
3. Fix in control panel to reflect updated LTC Generator state.

1. Using the new HalMIDIDevice to fix timecode conversion.
2. Minor improvements in the mixer - Depth popup clipping fixed.
3. Set the dBScale bitmap transparency.

1. Under some circumstances the HAL MIDI device was not getting the start call.
2. Some changes to the MIDI Send procedure.
3. Added the MTC Source menu to the mixer.

1. The mixer windows are now staggered on the main screen so that you can immediately see multiple windows if there are multiple LynxTWOs in the machine.
2. The MIDI driver is now included with the installer.

1. Removed reading of Digital Input status on Adapter page to prevent Mixer from locking up certain Macs.

1. Added setting up the sample offset parameter (to help with noise).
2. Added Settings menu functionality.
3. Enabled Clock Sample Rate popup.
4. Added Play information to the Record/Play tab.
5. Fixed Overload counters that were not counting up.
6. Fixed Pressing X on the main window would not close the application.
7. Fixed LStream tabs that were not working.

1. Added ability to Load/Save Scenes.
2. Added code to save mixer settings on application close (that's used at bootup).
3. Changed the name of Inputs tab to Record/Play.
4. Added the dB scale display to Outputs and Record/Play page.
5. Changed the name (and functionality) of LS-AES tabs to indicate the LStream ports.
6. Centering window on startup.

1. Inputs page now active.
2. Outputs page now active.

1. Added code for supporting Mixer controls.
2. Added code to support Kext Interface versioning.
3. Improved time-stamping by taking one on entry to the ISR.
4. Added code to specify sample latency (safety offset).
5. Added LynxTWO Mixer with Adapter Page controls functional. LynxTWO Mixer is installed in the Applications Folder.
   Please Note: If you choose an Sample Clock Source other than Internal and then try to play/record something, you must manually insure that the Sample Clock Source has a valid clock running or CoreAudio will get corrupted and only a reboot will allow you to use the audio engine again.

1. Changed when the interrupt is enabled to prevent lockups on boot.

1. Using optimized float/int conversion routines.
2. Using the last input device for interrupt control/position report.
3. Added the user-mode interface so as to make it work with L2Update.

1. Now reporting position based on the "current" DMA buffer block only.
2. Using fewer interrupts.
3. Using the primary interrupt handler for all processing.
4. Added "names" (Play N, Record N) for Streams.
5. Over/under run recovery improvements.

1. Driver now has interrupts on only for the last device that is active. This reduces the number of interrupts on the PCI bus.

1. Added buffer overrun detection/recovery.
2. Changed the DMA buffer size to 8 x 256 sample-frames.

1. First public beta release of driver.

1. Moved MIDI interrupt processing to separate timer to avoid multiple bugs in macOS. This should completely solve the record dropout issues that occurred on some first-generation M1 MacBook Pro computers.

1. Fixed issue with Lynx Mixer introduced with V2 Build 7 that prevented the link control from being turned off for the Inputs and Play panes.
2. Improved interrupt and MIDI processing to help record dropout issues that occurred on some first-generation M1 MacBook Pro computers.

1. Changed overall buffer size from 2048 samples back to 8192 samples.
2. Insured timing reference to operating system is maintained when NControl / Hilo Remote are running.

1. Changed overall buffer size from 8192 samples to 2048 samples to keep operating system timing more precise.
2. Restore defaults no longer changes the sample rate back to 44.1kHz. It keeps the current sample rate to avoid an issue during sleep mode where macOS wakes the driver up after 15 minutes without any interaction from the user.
3. Stop now prints out statistics on the interrupt performance vs expected. Shows in nanoseconds and samples for min and max values. Use the following command in terminal to see the log:
   log show -predicate ‘senderImagePath CONTAINS "com.lynxstudio"‘ -debug -info

1. Driver now defaults to Payload Size of 32 (previously was 8, 16 or 32 depending on sample rate).
2. New controls in Lynx Mixer & NControl: Input Safety Offset & Output Safety Offset. Default set to Auto which is the same as it was in the previous version: Input is Payload Size and Output is Payload Size * 2. These new controls allow the user to fine tune the latency to match the performance of the computer and project settings in use.
3. Supports E44 & E22 Rev C with the new sample rates those cards support.
4. Built and tested on macOS 14 Sonoma. Will work on Monterey, Ventura & Sonoma.
5. Package installer now automatically uninstalls any previous driver (and applications) before it installs this driver. Will prompt for "Finder" access to remove previous driver. User must press "OK".
6. Package installer now automatically installs and starts this driver. User no longer has to press the "Install Driver" button.
7. Sleep from OS now pauses streaming audio and restarts upon wake if streaming was active.

1. Added support for E22 and E44 cards.
2. Added support for the entire range of sample rates for the E22 and E44 cards.

1. First release of V2 driver.

1. Moved MIDI interrupt processing to separate timer to avoid multiple bugs in macOS. This should completely solve the record dropout issues that occurred on some first-generation M1 MacBook Pro computers.

1. Fixed issue with Lynx Mixer introduced with V2 Build 7 that prevented the link control from being turned off for the Inputs and Play panes.
2. Improved interrupt and MIDI processing to help record dropout issues that occurred on some first-generation M1 MacBook Pro computers.

1. Changed overall buffer size from 2048 samples back to 8192 samples.
2. Insured timing reference to operating system is maintained when NControl / Hilo Remote are running.

1. Changed overall buffer size from 8192 samples to 2048 samples to keep operating system timing more precise.
2. Restore defaults no longer changes the sample rate back to 44.1kHz. It keeps the current sample rate to avoid an issue during sleep mode where macOS wakes the driver up after 15 minutes without any interaction from the user.
3. Stop now prints out statistics on the interrupt performance vs expected. Shows in nanoseconds and samples for min and max values. Use the following command in terminal to see the log:
   log show -predicate ‘senderImagePath CONTAINS "com.lynxstudio"‘ -debug -info

1. Driver now defaults to Payload Size of 32 (previously was 8, 16 or 32 depending on sample rate).
2. New controls in Lynx Mixer & NControl: Input Safety Offset & Output Safety Offset. Default set to Auto which is the same as it was in the previous version: Input is Payload Size and Output is Payload Size * 2. These new controls allow the user to fine tune the latency to match the performance of the computer and project settings in use.
3. Supports E44 & E22 Rev C with the new sample rates those cards support.
4. Built and tested on macOS 14 Sonoma. Will work on Monterey, Ventura & Sonoma.
5. Package installer now automatically uninstalls any previous driver (and applications) before it installs this driver. Will prompt for "Finder" access to remove previous driver. User must press "OK".
6. Package installer now automatically installs and starts this driver. User no longer has to press the "Install Driver" button.
7. Sleep from OS now pauses streaming audio and restarts upon wake if streaming was active.

1. Added support for E22 and E44 cards.
2. Added support for the entire range of sample rates for the E22 and E44 cards.

1. First release of V2 driver.

1. Moved MIDI interrupt processing to separate timer to avoid multiple bugs in macOS. This should completely solve the record dropout issues that occurred on some first-generation M1 MacBook Pro computers.

1. Fixed issue with Lynx Mixer introduced with V2 Build 7 that prevented the link control from being turned off for the Inputs and Play panes.
2. Improved interrupt and MIDI processing to help record dropout issues that occurred on some first-generation M1 MacBook Pro computers.

1. Changed overall buffer size from 2048 samples back to 8192 samples.
2. Insured timing reference to operating system is maintained when NControl / Hilo Remote are running.

1. Changed overall buffer size from 8192 samples to 2048 samples to keep operating system timing more precise.
2. Restore defaults no longer changes the sample rate back to 44.1kHz. It keeps the current sample rate to avoid an issue during sleep mode where macOS wakes the driver up after 15 minutes without any interaction from the user.
3. Stop now prints out statistics on the interrupt performance vs expected. Shows in nanoseconds and samples for min and max values. Use the following command in terminal to see the log:
   log show -predicate ‘senderImagePath CONTAINS "com.lynxstudio"‘ -debug -info

1. Driver now defaults to Payload Size of 32 (previously was 8, 16 or 32 depending on sample rate).
2. New controls in Lynx Mixer & NControl: Input Safety Offset & Output Safety Offset. Default set to Auto which is the same as it was in the previous version: Input is Payload Size and Output is Payload Size * 2. These new controls allow the user to fine tune the latency to match the performance of the computer and project settings in use.
3. Supports E44 & E22 Rev C with the new sample rates those cards support.
4. Built and tested on macOS 14 Sonoma. Will work on Monterey, Ventura & Sonoma.
5. Package installer now automatically uninstalls any previous driver (and applications) before it installs this driver. Will prompt for "Finder" access to remove previous driver. User must press "OK".
6. Package installer now automatically installs and starts this driver. User no longer has to press the "Install Driver" button.
7. Sleep from OS now pauses streaming audio and restarts upon wake if streaming was active.

1. Added support for E22 and E44 cards.
2. Added support for the entire range of sample rates for the E22 and E44 cards.

1. First release of V2 driver.

1. Moved MIDI interrupt processing to separate timer to avoid multiple bugs in macOS. This should completely solve the record dropout issues that occurred on some first-generation M1 MacBook Pro computers.

1. Fixed issue with Lynx Mixer introduced with V2 Build 7 that prevented the link control from being turned off for the Inputs and Play panes.
2. Improved interrupt and MIDI processing to help record dropout issues that occurred on some first-generation M1 MacBook Pro computers.

1. Changed overall buffer size from 2048 samples back to 8192 samples.
2. Insured timing reference to operating system is maintained when NControl / Hilo Remote are running.

1. Changed overall buffer size from 8192 samples to 2048 samples to keep operating system timing more precise.
2. Restore defaults no longer changes the sample rate back to 44.1kHz. It keeps the current sample rate to avoid an issue during sleep mode where macOS wakes the driver up after 15 minutes without any interaction from the user.
3. Stop now prints out statistics on the interrupt performance vs expected. Shows in nanoseconds and samples for min and max values. Use the following command in terminal to see the log:
   log show -predicate ‘senderImagePath CONTAINS "com.lynxstudio"‘ -debug -info

1. Driver now defaults to Payload Size of 32 (previously was 8, 16 or 32 depending on sample rate).
2. New controls in Lynx Mixer & NControl: Input Safety Offset & Output Safety Offset. Default set to Auto which is the same as it was in the previous version: Input is Payload Size and Output is Payload Size * 2. These new controls allow the user to fine tune the latency to match the performance of the computer and project settings in use.
3. Supports E44 & E22 Rev C with the new sample rates those cards support.
4. Built and tested on macOS 14 Sonoma. Will work on Monterey, Ventura & Sonoma.
5. Package installer now automatically uninstalls any previous driver (and applications) before it installs this driver. Will prompt for "Finder" access to remove previous driver. User must press "OK".
6. Package installer now automatically installs and starts this driver. User no longer has to press the "Install Driver" button.
7. Sleep from OS now pauses streaming audio and restarts upon wake if streaming was active.

1. Added support for E22 and E44 cards.
2. Added support for the entire range of sample rates for the E22 and E44 cards.

1. First release of V2 driver.

1. Moved MIDI interrupt processing to separate timer to avoid multiple bugs in macOS. This should completely solve the record dropout issues that occurred on some first-generation M1 MacBook Pro computers.

1. Fixed issue with Lynx Mixer introduced with V2 Build 7 that prevented the link control from being turned off for the Inputs and Play panes.
2. Improved interrupt and MIDI processing to help record dropout issues that occurred on some first-generation M1 MacBook Pro computers.

1. Changed overall buffer size from 2048 samples back to 8192 samples.
2. Insured timing reference to operating system is maintained when NControl / Hilo Remote are running.

1. Changed overall buffer size from 8192 samples to 2048 samples to keep operating system timing more precise.
2. Restore defaults no longer changes the sample rate back to 44.1kHz. It keeps the current sample rate to avoid an issue during sleep mode where macOS wakes the driver up after 15 minutes without any interaction from the user.
3. Stop now prints out statistics on the interrupt performance vs expected. Shows in nanoseconds and samples for min and max values. Use the following command in terminal to see the log:
   log show -predicate ‘senderImagePath CONTAINS "com.lynxstudio"‘ -debug -info

1. Driver now defaults to Payload Size of 32 (previously was 8, 16 or 32 depending on sample rate).
2. New controls in Lynx Mixer & NControl: Input Safety Offset & Output Safety Offset. Default set to Auto which is the same as it was in the previous version: Input is Payload Size and Output is Payload Size * 2. These new controls allow the user to fine tune the latency to match the performance of the computer and project settings in use.
3. Supports E44 & E22 Rev C with the new sample rates those cards support.
4. Built and tested on macOS 14 Sonoma. Will work on Monterey, Ventura & Sonoma.
5. Package installer now automatically uninstalls any previous driver (and applications) before it installs this driver. Will prompt for "Finder" access to remove previous driver. User must press "OK".
6. Package installer now automatically installs and starts this driver. User no longer has to press the "Install Driver" button.
7. Sleep from OS now pauses streaming audio and restarts upon wake if streaming was active.

1. Added support for E22 and E44 cards.
2. Added support for the entire range of sample rates for the E22 and E44 cards.

1. First release of V2 driver.

Please read this entire document before proceeding with the installation of this driver.

Installation Notes

1. If you installed a previous version of this driver, please uninstall it first. To uninstall the driver, please run the Uninstall Lynx Driver application included with the driver. Once you have uninstalled the previous driver, please be sure to restart your computer before installing the newer version.

2. Double-click on the ZIP file to decompress the OS X driver package.

3. Double-click on the Lynx_OSX.pkg file to start the driver installation process.

4. Simply follow the instructions presented. You will be prompted for your administrator password and you must enter the password to install the driver.

5. Restart the computer.

6. When the computer restarts, the driver will be loaded automatically.

Revision History

Version 1.0 Build 58K BETA March 13, 2020

1. Aurora(n)-TB, Aurora(n)-TB3, Hilo-TB, Hilo-TB3 now have the sample rate and sync source read from the device upon driver load so the device retains the sample rate and sync source, not the driver. This prevents a cable disconnection from overriding the sample rate or sync source stored on the device.

2. Lynx Mixer > Settings > Advanced > Adapter Settings > Channel Mode now controls the number of channels shown for a classic Aurora 8-TB where previously it was fixed at 16-channels. Channel Mode in Lynx Mixer for classic Aurora 8-TB now allows 2 thru 16-channels to be selected.

Version 1.0 Build 58J BETA February 17, 2020

1. Added support for DB-ADAT connected to LM-DIG inside Aurora(n).

2. Added NControl to driver package.

2.1 Supports DB-ADAT.

2.2 Fixes issue with Mic Pre not showing Gain when in Hi-Z mode.

2.3 Fixes issue with About box not showing driver version info properly.

3. Changed to "Packages.app" for installer to allow for notarization on Catalina

4. Added register update after card info write to prevent streaming issues after an EEPROM write.

5. Saves Hardware Payload Size in EEPROM instead of MixerState.xml so it is restored properly if the device is plugged in or turned on after the Mac has started.

6. Lynx Mixer now shows and can select clock sources for LM-DIG and/or DB-ADAT with Firmware 1.21 on Aurora(n).

7. Changed smallest Hardware Payload Size when on "Auto" to 8 (from 4).

8. Added NControl 1.0.0 to driver installation package. NControl will be installed into the /Applications folder and will automatically be launched if the user launches Lynx Mixer with an Aurora(n)-TB3 (which doesn't support Lynx Mixer).

Version 1.0 Build 58I BETA November 14, 2019

1. Fixed issue with CARDID read on driver load that might cause firmware updates to timeout.

Version 1.0 Build 58H BETA October 10, 2019

1. Fixed issue with Lynx Mixer not allowing mute changes for sources to anything other than Out 1&2 (introduced on 58G).

Version 1.0 Build 58G BETA September 20, 2019

1. Driver and all applications are 64-bit and notarized by Apple for Mojave (10.14) and Catalina (10.15) and up.

2. Changed interface for FWUpdate to 64-bit. Older versions of FWUpdate will no longer function. User must use FWUpdate for 58G if a firmware update is required.

3. Sample offset fixed for Aurora(n)-TB. Added one sample for play and one sample for record.

4. Now includes Hilo Remote 1.0.19.

4.1. Hilo Remote no longer automatically resizes the window based on the number of channels.

4.2. Added "Advanced" menu option of connection method is Thunderbolt which may contain the following menu options depending on hardware configuration:

4.2.1. Added "Adapter Settings" dialog to allow adapter settings previously only available with Lynx Mixer to be changed with Hilo Remote.

4.2.2. Please note: This setting is for advanced use and normally should never need to be changed by the end user. Added "Hardware Payload Size". This should normally be left on "Auto" to allow the driver to determine the payload size (see note 5 below).

4.2.3. Please note: This setting is for advanced use and normally should never need to be changed by the end user. Added "Show PCIe DMA Completion Latency". This option will temporarily display the PCI Express DMA completion latency on the toolbar while streaming. This setting is not saved so each launch of Hilo Remote will have this option unchecked. The latency value can be used in conjunction with the Settings > Advanced > Hardware Payload Size to insure glitch free streaming. The current maximum value will be displayed in both microseconds and samples (adjusted for the current sample rate). The Hardware Payload Size should always be double the worst-case latency number in samples. The software buffer size should always be a minimum of 4 times the Hardware Payload Size.

5. Changed how the Hardware Payload Size is automatically calculated. The default values are 8 samples for 44.1kHz and 48kHz; 16 for 88.2kHz and 96kHz; and 32 for 176.4kHz and 192kHz. If Advanced > Hardware Payload Size is set to "Auto", each time the streaming is stopped, the driver evaluates the computers performance and may set a new default Hardware Payload Size if the driver based on the that performance measurement. This may result in either a higher Hardware Payload Size being selected, or a lower Hardware Payload Size depending on the speed of the computers PCIe DMA Completion Latency value.

6. In Lynx Mixer: Changed "Hardware Buffer Size" to "Hardware Payload Size" to keep it from being confused with the software buffer size. This should normally be left on "Auto" to allow the driver to determine the payload size (see note 5 above).

7. Please note: This setting is for advanced use and normally should never need to be changed by the end user. In Lynx Mixer: Added "Show PCIe DMA Completion Latency". This option will temporarily display the PCI Express DMA completion latency on the toolbar while streaming. This setting is not saved so each launch of Lynx Mixer will have this option unchecked. The latency value can be used in conjunction with the Settings > Advanced > Hardware Payload Size to insure glitch free streaming. The current maximum value will be displayed in both microseconds and samples (adjusted for the current sample rate). The Hardware Payload Size should always be double the worst-case latency number in samples. The software buffer size should always be a minimum of 4 times the Hardware Payload Size.

8. In Lynx Mixer: Added the ability to change the Sync Source on the Aurora(n)-TB. Please note that Firmware 6.4 is required on the LT-TB for this to function properly.

Version 1.0 Build 58E BETA March 1, 2019

1. Driver and all applications are now notarized by Apple for Mojave (10.14) and up.

2. Changed name of Hilo with LT-TB from "LT-TB" to "Hilo-TB".

3. All applications are now 64-bit to avoid warning on Mojave.

4. Transmit FIFO full check now performed for internal MIDI connection on LT-TB.

5. Sample offset fixed for LT-TB 5.5 firmware.

Version 1.0 Build 58D November 14, 2017

1. Added support for Aurora(n) with LM-DIG board.

2. Fixed issue for startup scene on certain configurations.

3. Driver now supports macOS 10.9 to macOS 10.13.

Version 1.0 Build 58C June 2, 2017

1. Added support for Aurora(n)-TB.

Version 1.0 Build 58B May 16, 2016

1. Added work-around for issue with DMAV2PLUS that would occasionally cause dropped samples on input.

2. Added support for fixed recording timing DMAV2PLUS firmware:
AES16e: 14.1
LT-TB: 6.2
E44/E22: 2.1

3. Added support for non-mixable integer format. This allows applications to bypass the Float32 to SignedInt32 conversion (which is bit-perfect, so there is no sonic difference either way).

4. Includes Hilo Remote Version 1.0.12.

5. Added new signing certificate for OS X 10.9 and up.

6. Driver now supports OS X 10.9 to OS X 10.11.

Version 1.0 Build 58 August 27, 2015

1. Added support for DMAV2PLUS for AES16e/LT-TB/E44/E22.
DMAV2PLUS supports the following features:
- Smaller transfer sizes to reduce latency to under 1ms round-trip (96kHz, 32 sample buffer)
DMAV2PLUS is supported with the following firmware:
AES16e: 14.0
LT-TB: 6.0
E44/E22: 2.0

2. Added new controls in Lynx Mixer to support DMAV2PLUS. Settings > Advanced > Hardware Buffer Size. This settings should be left at 'Auto' unless you are working with Lynx Technical Support on a specific issue. Changing this control sets the amount of audio buffered in the hardware. The smaller the number the faster the CPU must respond to interrupts before audio breaks up.

3. Includes Hilo Remote Version 1.0.11.

Version 1.0 Build 57A April 9, 2015

1. Added support for 32-bit Kernel for OS X 10.6 and 10.7.

2. Fixed issue that caused Build 57 driver to not load properly on OS X 10.8.

3. Included Hilo Remote 1.0.0.8.

Version 1.0 Build 57 December 9, 2014

1. Added full support for E44 and E22 PCI Express cards.

2. Corrected issue with Hilo-TB where the delay compensation was off by 1 sample for input and output.

3. Included Hilo Remote 1.0.0.6.

4. Added support for 2, 4 and 8-channel modes (in addition to 16, 24 and 32) for AES16e and LT-TB.

Version 1.0 Build 56 February 7, 2014

1. Added full support for LT-TB Thunderbolt adapter for Aurora and Hilo converters.

2. Added new Lynx Mixer application which gives the following new features:

* Tabs for each adapter installed instead of a separate floating window.

* Adapter; Record and Play pane may be displayed

* Rate Lock now available in OS X, which allows the sample rate to be fixed.

* Mixer Lock now available in OS X, which keeps the user for accidentally changing any control.

* Same look and feel for both Windows and OS X.

* Saves scenes in a standard XML file which are no longer version or OS specific.

* Added "Disable CPU Power Management" in driver which will turn off CPU power management whenever the driver is streaming. This may cause additional power draw for your computer while streaming audio, which may result in shorter on-battery time and higher heat generated. You may disable this new feature by un-checking the menu item while streaming is not active. If glitches in audio playback occur at higher sample rates or higher numbers of channels, we recommend leaving this item checked.

* For the AES16e+Aurora combo, new Aurora menu items appear within the Settings menu. This replaces Aurora Remote Control which is no longer needed for the AES16e+Aurora combo.

* New method for controlling the monitor sources.

* Inputs and Outputs change name based on what is connected. For the AES16e by itself, I/O will be labeled as Digital In and Digital Out. For the AES16e+Aurora combo, I/O will be labeled as Analog In and Analog Out.

* LS-ADAT fully supported with "ADAT Clock Source" selection in Settings Menu and LStream clock lockout for when the ADAT Clock Source is set to Slave.

* For the Aurora-TB and AES16e+Aurora combo, the Adapter Settings dialog now flashes the front panel of the Aurora when each device is selected. This allows easy identification when selecting the order of the adapters.

3. When driver is operating in 16-channel mode, outputs 17-32 (AES16e: ADAT or AES50 / Aurora 16-TB: AES/EBU) are mirrored from the first 16-channels.

4. When setting up an aggregate device in Audio/MIDI Setup, it is important to: Clock all devices from the same source; Set the Sync Source in Lynx Mixer to External for all "slave" devices (please note setting the clock source in Audio/MIDI setup has been removed); Turn "Drift/Resample" off for all "slave" devices in Audio/MIDI setup.

Version 1.0 Build 55 November 2, 2013

1. Added full support for OS X 10.9 (Mavericks). Installer and driver are now digitally signed (which is required by OS X 10.9). Signed driver is installed in /Library/Extensions and unsigned driver is installed in /System/Library/Extensions (for OS X 10.6; 10.7 and 10.8) as required by Apple.

2. Channel mode and card order (for a multi-card system) can now be set from within Lynx Mixer. Lynx Mixer > Settings > Adapter Settings. Please note that you must restart the computer for these settings to take effect. You must have firmware version 12.11 on your AES16e for this to work properly.

3. Remove ability to control output volumes from Audio/MIDI Setup. If you need this capability, please use Build 54.

4. Changed where Lynx Mixer stores the last used scene for restart. It is now stored in the Home Folder/Library/Preferences.

5. Added complete support for Thunderbolt hot plug and unplug. Please note that for some Thunderbolt chassis, OS X 10.8.5 is required for hot plug to work properly.

6. The AES16e-50 card defaults now has the AES50 port routed for all of the inputs.

Version 1.0 Build 54 August 1, 2012

1. Added full support for OS X 10.8 (Mountain Lion). Installer is now digitally signed (which is required by OS X 10.8).

2. Installer can now change from one channel mode to another (16/24/32) without rebooting the computer. Please note that you may need to uninstall the previous driver using the Lynx OS X Driver Uninstaller (see link above) before installing this driver to allow the channel mode change without reboot feature to work properly.

3. Added support for 24-channel mode.

4. Lynx Mixer now supports 16/24/32-channel mode and shows all controls for each mode. The channel mode currently selected is shown in About Lynx Mixer.

5. Audio/MIDI Setup can now control the output volumes, output mutes, input mutes and feed-through mutes. This allows the user to change these controls without launching Lynx Mixer (and also allows applications other than Lynx Mixer to change these controls).

6. Lynx Mixer now saves/restores all 32-channels upon exiting Lynx Mixer which allows channels 17-32 to remember the input routing through a reboot.

7. Increased the number of active devices to match the maximum number of devices available (except for 4X rates where it maxes out at 8 devices / 16 channels). Previously it was set to 8; 8 and 4.

Version 1.0 Build 53 March 13, 2012

1. Added full support for Thunderbolt expansion chassis. Implements hot-plugging and unplugging as well as sleep mode. Please note that Thunderbolt expansion chassis with the Lynx Audio Card must be connected and enabled when powering on the Macintosh otherwise the boot-loader will not allocate resources for the device and the driver will not be able to load.

2. Defaulted "Allow Clock Source Change while Active" to TRUE. Previously this control might get set to FALSE when doing a Restore Defaults, which would keep some applications from being able to change the sample rate until the streaming was stopped.

Version 1.0 Build 52 July 22, 2011

1. Set "Allow Clock Source Change while Active" to TRUE when loading driver and starting streaming.

Version 1.0 Build 51 March 2, 2011

1. Internal Test Builds.

Version 1.0 Build 50 December 8, 2010

1. Added support for 64-bit kernel.

2. Removed "Output Select" from LS-ADAT page in Lynx Mixer when running with an AES16e.

3. Added additional error messages to the kernel.log (Applications > Utilities > Console > kernel.log) if the driver fails to load.

4. This is an Intel Only Build compatible with OS X 10.6 (Snow Leopard) 32-bit and 64-bit kernel.

Version 1.0 Build 49 March 9, 2010

1. Added support for AES16e-50.

2. Added support for AES16e Firmware Build 11, which includes 64x32 mixer. Please note that driver defaults to 8 record and 8 play devices active so to use all 32-channels (16-devices) will require changing the Device Settings from within Lynx Mixer. Only the first 16-channels are routable on the Record/Play page (the top 16-channels are defaulted to LStream). Only the first 16-channels are routable on the Outputs page (the top 16-channels are defaulted to 1:1 from the play devices). This just means that it is not possible to do a record monitor (without software latency) on channels 17-32.

3. This is an Intel Only Build to make it compatible with OS X 10.6 (Snow Leopard) 32-bit kernel.

Version 1.0 Build 48i October 6, 2009

1. Fixed issue where Record Sources may be incorrectly listed as AES16 Digital Inputs instead of LynxTWO/L22 Inputs.

2. Removed MIDI Plugin.

3. This is an Intel Only Build to make it compatible with OS X 10.6 (Snow Leopard) 32-bit kernel.

Version 1.0 Build 47 November 13, 2008

1. Fixed issue where restoring scenes may cause kernel panic on LynxTWO/L22.

Version 1.0 Build 46 August 7, 2008

1. Added FWUpdate support for AES16e.

2. Fixed LynxTWORestoreSettings so it now runs on system startup.

3. Added About Box to Lynx Mixer. Please note when you open the About Box it places the text of the About Box into the clipboard so you can paste it to an email or our support forum without having to retype any information.

5. Fixed Sleep support so system can now go to Sleep and Resume from sleep without a Kernel Panic.

6. Fixed Sample Rate select control in Lynx Mixer so it always show the correct sample rate instead of occasionally being blank.

7. Renamed all devices (including MIDI) to show consistent device names.

Version 1.0 Build 45 April 17, 2008

1. No FWUpdate support for AES16e.

2. Fixed Logic 8 set 192kHz sample rate issue.

3. Included LynxRestoreSettings.

4. Saving scenes now saves all controls.

5. Fixed AES16-SRC and AES16e-SRC adapter pages.

Version 1.0 Build 44 April 11, 2008

1. LynxRestoreSettings is not included.

2. Saving a scene in Lynx Mixer will not save all of the controls. This just means that when you boot the Lynx Mixer will always start with the default settings..

4. Fixed Logic 8 set sample rate issue.

5. Updated Lynx Mixer AES16 Adapter page so status controls are color coded.

6. Fixed Lynx Mixer for PPC so font changes don't crash the program.

7. Fixed Interface to Aurora Remote so launching ARC will not Kernel Panic the computer.

Version 1.0 Build 43 April 1, 2008

1. Added support AES16e.

2. Universal Binary. Will work with either Intel or PPC Macintosh.

Version 1.01 Build 42 April 14, 2006

1. Added support for Aurora Remote and Aurora Update applications.

2. Renamed installer package to Lynx_OSX_xx.pkg.

3. Changed to ZIP file format for installer package.

4. Holding down the 'control' key while changing a main output volume now changes all 16 main output volumes together. The shift key still changes stereo pairs.

5. Holding down the 'control' key while selecting the monitor source or record source sets all the monitor sources to the right of the current control to next valid source.

6. Driver now supports both big endian and little endian firmware. This means if the Lynx PCI audio card already has Windows firmware on it, there is no need to update it to Macintosh firmware. All future firmware releases will be little endian (Windows) only. Please Note: This change allows the driver to use a Lynx PCI audio card with either Windows or Macintosh firmware. This driver will only work on a Macintosh with G5 and G4 processors, not Intel processors.

7. L2Update programs X21 and older will no longer function with this driver. If you must use an older L2Update program, first DesInstall this driver, restart the computer, run L2Update, power down then power back up and reinstall the driver.

Version 1.01 Build 41 March 6, 2006

1. Internal Test Build.

Version 1.01 Build 40 June 2, 2005

1. Fixed permissions issue for OSX 10.4 with StartupItems.

2. Fixed Recalibrate Converters button that was broken in Build 39..

3. Fixed audio erasure playback issue that was broken in Build 39. This would cause a 'stuttering' sound when multiple applications tried to playback audio from the same device (such as iTunes and Peak).

4. Fixed Restore Settings problem that may overwrite some trim controls values.

5. Fixed Restore Settings version so older settings files will no longer load.

6. Driver now only advertises to applications that the AES16 can do 32kHz to 192kHz. Previously the driver would advertise it could do 11.025 & 22.05kHz when it actually could not.

Version 1.01 Build 39 May 10, 2005

1. Changed how the Sample Clock Source selection works. Now, the control 'Preferred Clock Source' allows selection of the desired sample clock source. Once every 250 milliseconds (4 times a second) the sample clock source is evaluated by looking at the appropriate System Clock Rate (Frequency Counter next to the Preferred Clock Source selection button) to determine if the Preferred Clock Source is valid. If the clock source is valid, the driver switches the Sample Clock Source to the Preferred Clock Source. If at any time the Preferred Clock Source becomes invalid (clock cable disconnected, external gear that is feeding the clock is turned off), the driver changes the Sample Clock Source back to Internal, even if the card has a device that is actively playing or recording.

2. Removed the 'Sample Clock Reference' control as it was no longer needed because the driver automatically detects the different clock references (Word/Word256/13.5MHz/27MHz).

3. Added 'Rate Lock' control. Default is OFF. When ON, the driver will ignore all requests to change the Sample Clock Rate, including those coming from applications. The effectively causes all files not running at the currently selected clock rate to be software sample rate converted (if available) during playback/recording. When clocking to an external word clock, the Rate Lock function is effectively ON regardless of this switch setting, and the rate is locked to the same rate of the incoming word clock.

4. Fixed a problem on startup that would cause the driver to be out-of-sync with the hardware. This caused additional latency to be added to the audio stream.

5. Changed the number of transfers per interrupt from 2 to 8, which reduces the CPU load for processing interrupts.

6. Added output mixer source volume controls to Lynx Mixer Outputs page. This allows individual volume control over each source going to each output for custom mixes. Note: Holding down the shift key will change the volumes in stereo pairs.

Version 1.01 Build 38 December 22, 2004

1. The driver now recognizes Lynx L22 with serial numbers 230408XXXX and LynxTWO-A with serial numbers 200401XXXX as having the Rev A analog to digital converter chip. This corrects for a phase problem between channels 1 & 2 (and 3 & 4 on the LynxTWO-A) during recording. PLEASE NOTE: Only cards with these two specific serial number sequences would have exhibited any phase problems during recording and this driver corrects the issue.

Version 1.01 Build 37 December 9, 2004

1. Renamed 'LynxTWO Mixer' to 'Lynx Mixer'.

2. Fixed AES16-SRC Adapter Page in Lynx Mixer to correctly display SRC Enable & SRC Match Phase controls upon startup.

3. Lynx Mixer now saves the state of all the AES16 controls upon exiting and when saving a Scene.

4. Added Settings > Device Settings dialog box to Lynx Mixer to allow for configuration of the driver performance. PLEASE NOTE: The driver must not be active when making changes to the Device Settings dialog box. You must manually ensure the the transfer size set in the Lynx Mixer is less than or equal to the buffer size set in the application, otherwise audio break-up may occur. Reducing the number of active devices does not change how the driver appears inside an application, it only turns off the PCI Bus transfers for those devices - thus freeing the system to do other work.

5. Lynx Mixer now only shows the appropriate Settings menu items for the type of card in use.

Version 1.01 Build 36 June 25, 2004

1. First non-beta release of driver.

2. Added support for changing the sample clock source from within applications, such as Nuendo and Audio & MIDI Setup.

3. Put the maximum limit on number of devices at high sample rate (>96kHz) to 5 (giving 10in+10out channels).

Version 1.01 Build 35 June 9, 2004

1. Changed when the time stamp is reported to fix problem with larger record buffers and record buffer wrapping problem.

Version 1.01 Build 34 May 28, 2004

1. Changed how current position is reported to keep erase head getting too close to the playback head.

2. Added Restore Defaults to LynxTWO Mixer Application.

Version 1.01 Build 33 April 13, 2004

1. Complete rewrite of ISR and buffer handling to improve latency performance. Internal Release Only.

Version 1.01 Build 32 March 25, 2004

1. Changed how the DMA transfers are handled to improve reliability (GLIMIT to 256, SO to 256).

Version 1.01 Build 31 March 9, 2004

1. Fixed a problem that misreported the latency to CoreAudio.

2. Changed how the DMA transfers are handled to improve latency performance (GLIMIT to 32, SO to 32).

3. Changed the DMA buffer size to 16 x 256 sample-frames.

4. Fixed the LS-ADAT window to correctly display the position from the Sync In port.

5. Changed the frequency counters in the LynxTWO Mixer to show only one decimal point of accuracy in the kHz range.

6. Fixed a problem with the AES16-SRC Adapter Page that wouldn't allow enabling of the SRC Check Box.

7. Put the maximum limit on number of devices at high sample rate (>96kHz) to 2 (giving 4in+4out channels) as a temporary measure until the next rev of the driver.

Version 1.01 Build 30 January 12, 2004

1. Added support for the AES16 and AES16-SRC.

Version 1.01 Build 29 October 17, 2003

1. Put the maximum limit on number of devices at high sample rate (>96kHz) back to 4 (giving 8in+8out channels).

Version 1.01 Build 28 October 11, 2003

1. Changed the Record Source Menus to not show any check-marks.

2. Put the maximum limit on number of devices at high sample rate (>96kHz) to 5 (giving 10in+10out channels).

Version 1.01 Build 27 October 15, 2003

1. Added Record Source Lookup for Output Page in Lynx Mixer.

Version 1.01 Build 26 October 14, 2003

1. Record Sources Menu in Record/Play page is now adapter specific.

Version 1.01 Build 25 October 11, 2003

1. Fixed a problem that caused audio breakup at higher sample rates (>96kHz).

Version 1.01 Build 24 October 8, 2003

1. Increased the "tolerance" for overruns from 0 to 8.

Version 1.01 Build 23 October 4, 2003

1. Fixed a problem that caused the device to not play anything after using a high sampling rate (>96kHz).

2. Put the maximum limit on number of devices at high sample rate (>96kHz) to 4 (giving 8in+8out channels).

3. Improved overrun detection and recovery.

Version 1.01 Build 22 October 2, 2003

1. Changed the AudioEngine to only prepare and use 6 devices if sampling rate is above 96kHz.

2. Create just one multi-channel device to work around sample rate setting issue with Nuendo 2 & Cubase SX.

Version 1.01 Build 20 September 15, 2003

1. Using the new HalMIDIDevice to fix timecode conversion.

2. Minor improvements in the mixer - Depth popup clipping fixed.

3. Set the dBScale bitmap transparency.

Version 1.01 Build 19 September 11, 2003

1. Under some circumstances the HAL MIDI device was not getting the start call.

2. Some changes to the MIDI Send procedure.

3. Added the MTC Source menu to the mixer.

Version 1.01 Build 18 September 9, 2003

1. The mixer windows are now staggered on the main screen so that you can immediately see multiple windows if there are multiple LynxTWOs in the machine.

2. The MIDI driver is now included with the installer.

Version 1.01 Build 17 August 28, 2003

1. Removed reading of Digital Input status on Adapter page to prevent Mixer from locking up certain Macs.

Version 1.01 Build 16 August 11, 2003

1. Added setting up the sample offset parameter (to help with noise).

2. Added Settings menu functionality.

Version 1.01 Build 15 July 7, 2003

1. Added ability to Load/Save Scenes.

2. Added code to save mixer settings on application close (that's used at bootup).

3. Changed the name of Inputs tab to Record/Play.

4. Added the dB scale display to Outputs and Record/Play page.

5. Changed the name (and functionality) of LS-AES tabs to indicate the LStream ports.

6. Centering window on startup.

Version 1.01 Build 14 July 1, 2003

1. Inputs page now active.

2. Outputs page now active.

Version 1.01 Build 13 June 27, 2003

1. Added code for supporting Mixer controls.

2. Added code to support Kext Interface versioning.

3. Improved time-stamping by taking one on entry to the ISR.

4. Added code to specify sample latency (safety offset).

5. Added LynxTWO Mixer with Adapter Page controls functional. LynxTWO Mixer is installed in the Applications Folder.
Please Note: If you choose an Sample Clock Source other than Internal and then try to play/record something, you must manually insure that the Sample Clock Source has a valid clock running or CoreAudio will get corrupted and only a reboot will allow you to use the audio engine again.

Version 1.01 Build 12 June 18, 2003

1. Changed when the interrupt is enabled to prevent lockups on boot.

Version 1.01 Build 11 June 13, 2003

1. Using optimized float/int conversion routines.

2. Using the last input device for interrupt control/position report.

3. Added the user-mode interface so as to make it work with L2Update.

Version 1.01 Build 10 May 22, 2003

1. Now reporting position based on the "current" DMA buffer block only.

2. Using fewer interrupts.

3. Using the primary interrupt handler for all processing.

4. Added "names" (Play N, Record N) for Streams.

5. Over/under run recovery improvements.

Version 1.0 Build 09 May 16, 2003

1. Driver now has interrupts on only for the last device that is active. This reduces the number of interrupts on the PCI bus.

Version 1.0 Build 08 May 12, 2003

1. Added buffer overrun detection/recovery.

2. Changed the DMA buffer size to 8 x 256 sample-frames.

Version 1.0 Build 07 May 7, 2003

1. First public beta release of driver.

.

-end-

Please read this entire document before proceeding with the installation of this driver.

Installation Notes

1. If you installed a previous version of this driver, please uninstall it first. To uninstall the driver, please run the Uninstall Lynx Driver application included with the driver. Once you have uninstalled the previous driver, please be sure to restart your computer before installing the newer version.

2. Double-click on the ZIP file to decompress the OS X driver package.

3. Double-click on the Lynx_OSX.pkg file to start the driver installation process.

4. Simply follow the instructions presented. You will be prompted for your administrator password and you must enter the password to install the driver.

5. Restart the computer.

6. When the computer restarts, the driver will be loaded automatically.

Revision History

Version 1.0 Build 58K BETA March 13, 2020

1. Aurora(n)-TB, Aurora(n)-TB3, Hilo-TB, Hilo-TB3 now have the sample rate and sync source read from the device upon driver load so the device retains the sample rate and sync source, not the driver. This prevents a cable disconnection from overriding the sample rate or sync source stored on the device.

2. Lynx Mixer > Settings > Advanced > Adapter Settings > Channel Mode now controls the number of channels shown for a classic Aurora 8-TB where previously it was fixed at 16-channels. Channel Mode in Lynx Mixer for classic Aurora 8-TB now allows 2 thru 16-channels to be selected.

Version 1.0 Build 58J BETA February 17, 2020

1. Added support for DB-ADAT connected to LM-DIG inside Aurora(n).

2. Added NControl to driver package.

2.1 Supports DB-ADAT.

2.2 Fixes issue with Mic Pre not showing Gain when in Hi-Z mode.

2.3 Fixes issue with About box not showing driver version info properly.

3. Changed to "Packages.app" for installer to allow for notarization on Catalina

4. Added register update after card info write to prevent streaming issues after an EEPROM write.

5. Saves Hardware Payload Size in EEPROM instead of MixerState.xml so it is restored properly if the device is plugged in or turned on after the Mac has started.

6. Lynx Mixer now shows and can select clock sources for LM-DIG and/or DB-ADAT with Firmware 1.21 on Aurora(n).

7. Changed smallest Hardware Payload Size when on "Auto" to 8 (from 4).

8. Added NControl 1.0.0 to driver installation package. NControl will be installed into the /Applications folder and will automatically be launched if the user launches Lynx Mixer with an Aurora(n)-TB3 (which doesn't support Lynx Mixer).

Version 1.0 Build 58I BETA November 14, 2019

1. Fixed issue with CARDID read on driver load that might cause firmware updates to timeout.

Version 1.0 Build 58H BETA October 10, 2019

1. Fixed issue with Lynx Mixer not allowing mute changes for sources to anything other than Out 1&2 (introduced on 58G).

Version 1.0 Build 58G BETA September 20, 2019

1. Driver and all applications are 64-bit and notarized by Apple for Mojave (10.14) and Catalina (10.15) and up.

2. Changed interface for FWUpdate to 64-bit. Older versions of FWUpdate will no longer function. User must use FWUpdate for 58G if a firmware update is required.

3. Sample offset fixed for Aurora(n)-TB. Added one sample for play and one sample for record.

4. Now includes Hilo Remote 1.0.19.

4.1. Hilo Remote no longer automatically resizes the window based on the number of channels.

4.2. Added "Advanced" menu option of connection method is Thunderbolt which may contain the following menu options depending on hardware configuration:

4.2.1. Added "Adapter Settings" dialog to allow adapter settings previously only available with Lynx Mixer to be changed with Hilo Remote.

4.2.2. Please note: This setting is for advanced use and normally should never need to be changed by the end user. Added "Hardware Payload Size". This should normally be left on "Auto" to allow the driver to determine the payload size (see note 5 below).

4.2.3. Please note: This setting is for advanced use and normally should never need to be changed by the end user. Added "Show PCIe DMA Completion Latency". This option will temporarily display the PCI Express DMA completion latency on the toolbar while streaming. This setting is not saved so each launch of Hilo Remote will have this option unchecked. The latency value can be used in conjunction with the Settings > Advanced > Hardware Payload Size to insure glitch free streaming. The current maximum value will be displayed in both microseconds and samples (adjusted for the current sample rate). The Hardware Payload Size should always be double the worst-case latency number in samples. The software buffer size should always be a minimum of 4 times the Hardware Payload Size.

5. Changed how the Hardware Payload Size is automatically calculated. The default values are 8 samples for 44.1kHz and 48kHz; 16 for 88.2kHz and 96kHz; and 32 for 176.4kHz and 192kHz. If Advanced > Hardware Payload Size is set to "Auto", each time the streaming is stopped, the driver evaluates the computers performance and may set a new default Hardware Payload Size if the driver based on the that performance measurement. This may result in either a higher Hardware Payload Size being selected, or a lower Hardware Payload Size depending on the speed of the computers PCIe DMA Completion Latency value.

6. In Lynx Mixer: Changed "Hardware Buffer Size" to "Hardware Payload Size" to keep it from being confused with the software buffer size. This should normally be left on "Auto" to allow the driver to determine the payload size (see note 5 above).

7. Please note: This setting is for advanced use and normally should never need to be changed by the end user. In Lynx Mixer: Added "Show PCIe DMA Completion Latency". This option will temporarily display the PCI Express DMA completion latency on the toolbar while streaming. This setting is not saved so each launch of Lynx Mixer will have this option unchecked. The latency value can be used in conjunction with the Settings > Advanced > Hardware Payload Size to insure glitch free streaming. The current maximum value will be displayed in both microseconds and samples (adjusted for the current sample rate). The Hardware Payload Size should always be double the worst-case latency number in samples. The software buffer size should always be a minimum of 4 times the Hardware Payload Size.

8. In Lynx Mixer: Added the ability to change the Sync Source on the Aurora(n)-TB. Please note that Firmware 6.4 is required on the LT-TB for this to function properly.

Version 1.0 Build 58E BETA March 1, 2019

1. Driver and all applications are now notarized by Apple for Mojave (10.14) and up.

2. Changed name of Hilo with LT-TB from "LT-TB" to "Hilo-TB".

3. All applications are now 64-bit to avoid warning on Mojave.

4. Transmit FIFO full check now performed for internal MIDI connection on LT-TB.

5. Sample offset fixed for LT-TB 5.5 firmware.

Version 1.0 Build 58D November 14, 2017

1. Added support for Aurora(n) with LM-DIG board.

2. Fixed issue for startup scene on certain configurations.

3. Driver now supports macOS 10.9 to macOS 10.13.

Version 1.0 Build 58C June 2, 2017

1. Added support for Aurora(n)-TB.

Version 1.0 Build 58B May 16, 2016

1. Added work-around for issue with DMAV2PLUS that would occasionally cause dropped samples on input.

2. Added support for fixed recording timing DMAV2PLUS firmware:
AES16e: 14.1
LT-TB: 6.2
E44/E22: 2.1

3. Added support for non-mixable integer format. This allows applications to bypass the Float32 to SignedInt32 conversion (which is bit-perfect, so there is no sonic difference either way).

4. Includes Hilo Remote Version 1.0.12.

5. Added new signing certificate for OS X 10.9 and up.

6. Driver now supports OS X 10.9 to OS X 10.11.

Version 1.0 Build 58 August 27, 2015

1. Added support for DMAV2PLUS for AES16e/LT-TB/E44/E22.
DMAV2PLUS supports the following features:
- Smaller transfer sizes to reduce latency to under 1ms round-trip (96kHz, 32 sample buffer)
DMAV2PLUS is supported with the following firmware:
AES16e: 14.0
LT-TB: 6.0
E44/E22: 2.0

2. Added new controls in Lynx Mixer to support DMAV2PLUS. Settings > Advanced > Hardware Buffer Size. This settings should be left at 'Auto' unless you are working with Lynx Technical Support on a specific issue. Changing this control sets the amount of audio buffered in the hardware. The smaller the number the faster the CPU must respond to interrupts before audio breaks up.

3. Includes Hilo Remote Version 1.0.11.

Version 1.0 Build 57A April 9, 2015

1. Added support for 32-bit Kernel for OS X 10.6 and 10.7.

2. Fixed issue that caused Build 57 driver to not load properly on OS X 10.8.

3. Included Hilo Remote 1.0.0.8.

Version 1.0 Build 57 December 9, 2014

1. Added full support for E44 and E22 PCI Express cards.

2. Corrected issue with Hilo-TB where the delay compensation was off by 1 sample for input and output.

3. Included Hilo Remote 1.0.0.6.

4. Added support for 2, 4 and 8-channel modes (in addition to 16, 24 and 32) for AES16e and LT-TB.

Version 1.0 Build 56 February 7, 2014

1. Added full support for LT-TB Thunderbolt adapter for Aurora and Hilo converters.

2. Added new Lynx Mixer application which gives the following new features:

* Tabs for each adapter installed instead of a separate floating window.

* Adapter; Record and Play pane may be displayed

* Rate Lock now available in OS X, which allows the sample rate to be fixed.

* Mixer Lock now available in OS X, which keeps the user for accidentally changing any control.

* Same look and feel for both Windows and OS X.

* Saves scenes in a standard XML file which are no longer version or OS specific.

* Added "Disable CPU Power Management" in driver which will turn off CPU power management whenever the driver is streaming. This may cause additional power draw for your computer while streaming audio, which may result in shorter on-battery time and higher heat generated. You may disable this new feature by un-checking the menu item while streaming is not active. If glitches in audio playback occur at higher sample rates or higher numbers of channels, we recommend leaving this item checked.

* For the AES16e+Aurora combo, new Aurora menu items appear within the Settings menu. This replaces Aurora Remote Control which is no longer needed for the AES16e+Aurora combo.

* New method for controlling the monitor sources.

* Inputs and Outputs change name based on what is connected. For the AES16e by itself, I/O will be labeled as Digital In and Digital Out. For the AES16e+Aurora combo, I/O will be labeled as Analog In and Analog Out.

* LS-ADAT fully supported with "ADAT Clock Source" selection in Settings Menu and LStream clock lockout for when the ADAT Clock Source is set to Slave.

* For the Aurora-TB and AES16e+Aurora combo, the Adapter Settings dialog now flashes the front panel of the Aurora when each device is selected. This allows easy identification when selecting the order of the adapters.

3. When driver is operating in 16-channel mode, outputs 17-32 (AES16e: ADAT or AES50 / Aurora 16-TB: AES/EBU) are mirrored from the first 16-channels.

4. When setting up an aggregate device in Audio/MIDI Setup, it is important to: Clock all devices from the same source; Set the Sync Source in Lynx Mixer to External for all "slave" devices (please note setting the clock source in Audio/MIDI setup has been removed); Turn "Drift/Resample" off for all "slave" devices in Audio/MIDI setup.

Version 1.0 Build 55 November 2, 2013

1. Added full support for OS X 10.9 (Mavericks). Installer and driver are now digitally signed (which is required by OS X 10.9). Signed driver is installed in /Library/Extensions and unsigned driver is installed in /System/Library/Extensions (for OS X 10.6; 10.7 and 10.8) as required by Apple.

2. Channel mode and card order (for a multi-card system) can now be set from within Lynx Mixer. Lynx Mixer > Settings > Adapter Settings. Please note that you must restart the computer for these settings to take effect. You must have firmware version 12.11 on your AES16e for this to work properly.

3. Remove ability to control output volumes from Audio/MIDI Setup. If you need this capability, please use Build 54.

4. Changed where Lynx Mixer stores the last used scene for restart. It is now stored in the Home Folder/Library/Preferences.

5. Added complete support for Thunderbolt hot plug and unplug. Please note that for some Thunderbolt chassis, OS X 10.8.5 is required for hot plug to work properly.

6. The AES16e-50 card defaults now has the AES50 port routed for all of the inputs.

Version 1.0 Build 54 August 1, 2012

1. Added full support for OS X 10.8 (Mountain Lion). Installer is now digitally signed (which is required by OS X 10.8).

2. Installer can now change from one channel mode to another (16/24/32) without rebooting the computer. Please note that you may need to uninstall the previous driver using the Lynx OS X Driver Uninstaller (see link above) before installing this driver to allow the channel mode change without reboot feature to work properly.

3. Added support for 24-channel mode.

4. Lynx Mixer now supports 16/24/32-channel mode and shows all controls for each mode. The channel mode currently selected is shown in About Lynx Mixer.

5. Audio/MIDI Setup can now control the output volumes, output mutes, input mutes and feed-through mutes. This allows the user to change these controls without launching Lynx Mixer (and also allows applications other than Lynx Mixer to change these controls).

6. Lynx Mixer now saves/restores all 32-channels upon exiting Lynx Mixer which allows channels 17-32 to remember the input routing through a reboot.

7. Increased the number of active devices to match the maximum number of devices available (except for 4X rates where it maxes out at 8 devices / 16 channels). Previously it was set to 8; 8 and 4.

Version 1.0 Build 53 March 13, 2012

1. Added full support for Thunderbolt expansion chassis. Implements hot-plugging and unplugging as well as sleep mode. Please note that Thunderbolt expansion chassis with the Lynx Audio Card must be connected and enabled when powering on the Macintosh otherwise the boot-loader will not allocate resources for the device and the driver will not be able to load.

2. Defaulted "Allow Clock Source Change while Active" to TRUE. Previously this control might get set to FALSE when doing a Restore Defaults, which would keep some applications from being able to change the sample rate until the streaming was stopped.

Version 1.0 Build 52 July 22, 2011

1. Set "Allow Clock Source Change while Active" to TRUE when loading driver and starting streaming.

Version 1.0 Build 51 March 2, 2011

1. Internal Test Builds.

Version 1.0 Build 50 December 8, 2010

1. Added support for 64-bit kernel.

2. Removed "Output Select" from LS-ADAT page in Lynx Mixer when running with an AES16e.

3. Added additional error messages to the kernel.log (Applications > Utilities > Console > kernel.log) if the driver fails to load.

4. This is an Intel Only Build compatible with OS X 10.6 (Snow Leopard) 32-bit and 64-bit kernel.

Version 1.0 Build 49 March 9, 2010

1. Added support for AES16e-50.

2. Added support for AES16e Firmware Build 11, which includes 64x32 mixer. Please note that driver defaults to 8 record and 8 play devices active so to use all 32-channels (16-devices) will require changing the Device Settings from within Lynx Mixer. Only the first 16-channels are routable on the Record/Play page (the top 16-channels are defaulted to LStream). Only the first 16-channels are routable on the Outputs page (the top 16-channels are defaulted to 1:1 from the play devices). This just means that it is not possible to do a record monitor (without software latency) on channels 17-32.

3. This is an Intel Only Build to make it compatible with OS X 10.6 (Snow Leopard) 32-bit kernel.

Version 1.0 Build 48i October 6, 2009

1. Fixed issue where Record Sources may be incorrectly listed as AES16 Digital Inputs instead of LynxTWO/L22 Inputs.

2. Removed MIDI Plugin.

3. This is an Intel Only Build to make it compatible with OS X 10.6 (Snow Leopard) 32-bit kernel.

Version 1.0 Build 47 November 13, 2008

1. Fixed issue where restoring scenes may cause kernel panic on LynxTWO/L22.

Version 1.0 Build 46 August 7, 2008

1. Added FWUpdate support for AES16e.

2. Fixed LynxTWORestoreSettings so it now runs on system startup.

3. Added About Box to Lynx Mixer. Please note when you open the About Box it places the text of the About Box into the clipboard so you can paste it to an email or our support forum without having to retype any information.

5. Fixed Sleep support so system can now go to Sleep and Resume from sleep without a Kernel Panic.

6. Fixed Sample Rate select control in Lynx Mixer so it always show the correct sample rate instead of occasionally being blank.

7. Renamed all devices (including MIDI) to show consistent device names.

Version 1.0 Build 45 April 17, 2008

1. No FWUpdate support for AES16e.

2. Fixed Logic 8 set 192kHz sample rate issue.

3. Included LynxRestoreSettings.

4. Saving scenes now saves all controls.

5. Fixed AES16-SRC and AES16e-SRC adapter pages.

Version 1.0 Build 44 April 11, 2008

1. LynxRestoreSettings is not included.

2. Saving a scene in Lynx Mixer will not save all of the controls. This just means that when you boot the Lynx Mixer will always start with the default settings..

4. Fixed Logic 8 set sample rate issue.

5. Updated Lynx Mixer AES16 Adapter page so status controls are color coded.

6. Fixed Lynx Mixer for PPC so font changes don't crash the program.

7. Fixed Interface to Aurora Remote so launching ARC will not Kernel Panic the computer.

Version 1.0 Build 43 April 1, 2008

1. Added support AES16e.

2. Universal Binary. Will work with either Intel or PPC Macintosh.

Version 1.01 Build 42 April 14, 2006

1. Added support for Aurora Remote and Aurora Update applications.

2. Renamed installer package to Lynx_OSX_xx.pkg.

3. Changed to ZIP file format for installer package.

4. Holding down the 'control' key while changing a main output volume now changes all 16 main output volumes together. The shift key still changes stereo pairs.

5. Holding down the 'control' key while selecting the monitor source or record source sets all the monitor sources to the right of the current control to next valid source.

6. Driver now supports both big endian and little endian firmware. This means if the Lynx PCI audio card already has Windows firmware on it, there is no need to update it to Macintosh firmware. All future firmware releases will be little endian (Windows) only. Please Note: This change allows the driver to use a Lynx PCI audio card with either Windows or Macintosh firmware. This driver will only work on a Macintosh with G5 and G4 processors, not Intel processors.

7. L2Update programs X21 and older will no longer function with this driver. If you must use an older L2Update program, first DesInstall this driver, restart the computer, run L2Update, power down then power back up and reinstall the driver.

Version 1.01 Build 41 March 6, 2006

1. Internal Test Build.

Version 1.01 Build 40 June 2, 2005

1. Fixed permissions issue for OSX 10.4 with StartupItems.

2. Fixed Recalibrate Converters button that was broken in Build 39..

3. Fixed audio erasure playback issue that was broken in Build 39. This would cause a 'stuttering' sound when multiple applications tried to playback audio from the same device (such as iTunes and Peak).

4. Fixed Restore Settings problem that may overwrite some trim controls values.

5. Fixed Restore Settings version so older settings files will no longer load.

6. Driver now only advertises to applications that the AES16 can do 32kHz to 192kHz. Previously the driver would advertise it could do 11.025 & 22.05kHz when it actually could not.

Version 1.01 Build 39 May 10, 2005

1. Changed how the Sample Clock Source selection works. Now, the control 'Preferred Clock Source' allows selection of the desired sample clock source. Once every 250 milliseconds (4 times a second) the sample clock source is evaluated by looking at the appropriate System Clock Rate (Frequency Counter next to the Preferred Clock Source selection button) to determine if the Preferred Clock Source is valid. If the clock source is valid, the driver switches the Sample Clock Source to the Preferred Clock Source. If at any time the Preferred Clock Source becomes invalid (clock cable disconnected, external gear that is feeding the clock is turned off), the driver changes the Sample Clock Source back to Internal, even if the card has a device that is actively playing or recording.

2. Removed the 'Sample Clock Reference' control as it was no longer needed because the driver automatically detects the different clock references (Word/Word256/13.5MHz/27MHz).

3. Added 'Rate Lock' control. Default is OFF. When ON, the driver will ignore all requests to change the Sample Clock Rate, including those coming from applications. The effectively causes all files not running at the currently selected clock rate to be software sample rate converted (if available) during playback/recording. When clocking to an external word clock, the Rate Lock function is effectively ON regardless of this switch setting, and the rate is locked to the same rate of the incoming word clock.

4. Fixed a problem on startup that would cause the driver to be out-of-sync with the hardware. This caused additional latency to be added to the audio stream.

5. Changed the number of transfers per interrupt from 2 to 8, which reduces the CPU load for processing interrupts.

6. Added output mixer source volume controls to Lynx Mixer Outputs page. This allows individual volume control over each source going to each output for custom mixes. Note: Holding down the shift key will change the volumes in stereo pairs.

Version 1.01 Build 38 December 22, 2004

1. The driver now recognizes Lynx L22 with serial numbers 230408XXXX and LynxTWO-A with serial numbers 200401XXXX as having the Rev A analog to digital converter chip. This corrects for a phase problem between channels 1 & 2 (and 3 & 4 on the LynxTWO-A) during recording. PLEASE NOTE: Only cards with these two specific serial number sequences would have exhibited any phase problems during recording and this driver corrects the issue.

Version 1.01 Build 37 December 9, 2004

1. Renamed 'LynxTWO Mixer' to 'Lynx Mixer'.

2. Fixed AES16-SRC Adapter Page in Lynx Mixer to correctly display SRC Enable & SRC Match Phase controls upon startup.

3. Lynx Mixer now saves the state of all the AES16 controls upon exiting and when saving a Scene.

4. Added Settings > Device Settings dialog box to Lynx Mixer to allow for configuration of the driver performance. PLEASE NOTE: The driver must not be active when making changes to the Device Settings dialog box. You must manually ensure the the transfer size set in the Lynx Mixer is less than or equal to the buffer size set in the application, otherwise audio break-up may occur. Reducing the number of active devices does not change how the driver appears inside an application, it only turns off the PCI Bus transfers for those devices - thus freeing the system to do other work.

5. Lynx Mixer now only shows the appropriate Settings menu items for the type of card in use.

Version 1.01 Build 36 June 25, 2004

1. First non-beta release of driver.

2. Added support for changing the sample clock source from within applications, such as Nuendo and Audio & MIDI Setup.

3. Put the maximum limit on number of devices at high sample rate (>96kHz) to 5 (giving 10in+10out channels).

Version 1.01 Build 35 June 9, 2004

1. Changed when the time stamp is reported to fix problem with larger record buffers and record buffer wrapping problem.

Version 1.01 Build 34 May 28, 2004

1. Changed how current position is reported to keep erase head getting too close to the playback head.

2. Added Restore Defaults to LynxTWO Mixer Application.

Version 1.01 Build 33 April 13, 2004

1. Complete rewrite of ISR and buffer handling to improve latency performance. Internal Release Only.

Version 1.01 Build 32 March 25, 2004

1. Changed how the DMA transfers are handled to improve reliability (GLIMIT to 256, SO to 256).

Version 1.01 Build 31 March 9, 2004

1. Fixed a problem that misreported the latency to CoreAudio.

2. Changed how the DMA transfers are handled to improve latency performance (GLIMIT to 32, SO to 32).

3. Changed the DMA buffer size to 16 x 256 sample-frames.

4. Fixed the LS-ADAT window to correctly display the position from the Sync In port.

5. Changed the frequency counters in the LynxTWO Mixer to show only one decimal point of accuracy in the kHz range.

6. Fixed a problem with the AES16-SRC Adapter Page that wouldn't allow enabling of the SRC Check Box.

7. Put the maximum limit on number of devices at high sample rate (>96kHz) to 2 (giving 4in+4out channels) as a temporary measure until the next rev of the driver.

Version 1.01 Build 30 January 12, 2004

1. Added support for the AES16 and AES16-SRC.

Version 1.01 Build 29 October 17, 2003

1. Put the maximum limit on number of devices at high sample rate (>96kHz) back to 4 (giving 8in+8out channels).

Version 1.01 Build 28 October 11, 2003

1. Changed the Record Source Menus to not show any check-marks.

2. Put the maximum limit on number of devices at high sample rate (>96kHz) to 5 (giving 10in+10out channels).

Version 1.01 Build 27 October 15, 2003

1. Added Record Source Lookup for Output Page in Lynx Mixer.

Version 1.01 Build 26 October 14, 2003

1. Record Sources Menu in Record/Play page is now adapter specific.

Version 1.01 Build 25 October 11, 2003

1. Fixed a problem that caused audio breakup at higher sample rates (>96kHz).

Version 1.01 Build 24 October 8, 2003

1. Increased the "tolerance" for overruns from 0 to 8.

Version 1.01 Build 23 October 4, 2003

1. Fixed a problem that caused the device to not play anything after using a high sampling rate (>96kHz).

2. Put the maximum limit on number of devices at high sample rate (>96kHz) to 4 (giving 8in+8out channels).

3. Improved overrun detection and recovery.

Version 1.01 Build 22 October 2, 2003

1. Changed the AudioEngine to only prepare and use 6 devices if sampling rate is above 96kHz.

2. Create just one multi-channel device to work around sample rate setting issue with Nuendo 2 & Cubase SX.

Version 1.01 Build 20 September 15, 2003

1. Using the new HalMIDIDevice to fix timecode conversion.

2. Minor improvements in the mixer - Depth popup clipping fixed.

3. Set the dBScale bitmap transparency.

Version 1.01 Build 19 September 11, 2003

1. Under some circumstances the HAL MIDI device was not getting the start call.

2. Some changes to the MIDI Send procedure.

3. Added the MTC Source menu to the mixer.

Version 1.01 Build 18 September 9, 2003

1. The mixer windows are now staggered on the main screen so that you can immediately see multiple windows if there are multiple LynxTWOs in the machine.

2. The MIDI driver is now included with the installer.

Version 1.01 Build 17 August 28, 2003

1. Removed reading of Digital Input status on Adapter page to prevent Mixer from locking up certain Macs.

Version 1.01 Build 16 August 11, 2003

1. Added setting up the sample offset parameter (to help with noise).

2. Added Settings menu functionality.

Version 1.01 Build 15 July 7, 2003

1. Added ability to Load/Save Scenes.

2. Added code to save mixer settings on application close (that's used at bootup).

3. Changed the name of Inputs tab to Record/Play.

4. Added the dB scale display to Outputs and Record/Play page.

5. Changed the name (and functionality) of LS-AES tabs to indicate the LStream ports.

6. Centering window on startup.

Version 1.01 Build 14 July 1, 2003

1. Inputs page now active.

2. Outputs page now active.

Version 1.01 Build 13 June 27, 2003

1. Added code for supporting Mixer controls.

2. Added code to support Kext Interface versioning.

3. Improved time-stamping by taking one on entry to the ISR.

4. Added code to specify sample latency (safety offset).

5. Added LynxTWO Mixer with Adapter Page controls functional. LynxTWO Mixer is installed in the Applications Folder.
Please Note: If you choose an Sample Clock Source other than Internal and then try to play/record something, you must manually insure that the Sample Clock Source has a valid clock running or CoreAudio will get corrupted and only a reboot will allow you to use the audio engine again.

Version 1.01 Build 12 June 18, 2003

1. Changed when the interrupt is enabled to prevent lockups on boot.

Version 1.01 Build 11 June 13, 2003

1. Using optimized float/int conversion routines.

2. Using the last input device for interrupt control/position report.

3. Added the user-mode interface so as to make it work with L2Update.

Version 1.01 Build 10 May 22, 2003

1. Now reporting position based on the "current" DMA buffer block only.

2. Using fewer interrupts.

3. Using the primary interrupt handler for all processing.

4. Added "names" (Play N, Record N) for Streams.

5. Over/under run recovery improvements.

Version 1.0 Build 09 May 16, 2003

1. Driver now has interrupts on only for the last device that is active. This reduces the number of interrupts on the PCI bus.

Version 1.0 Build 08 May 12, 2003

1. Added buffer overrun detection/recovery.

2. Changed the DMA buffer size to 8 x 256 sample-frames.

Version 1.0 Build 07 May 7, 2003

1. First public beta release of driver.

.

-end-

Please read this entire document before proceeding with the installation of this driver.

Installation Notes

1. If you installed a previous version of this driver, please uninstall it first. To uninstall the driver, please run the Uninstall Lynx Driver application included with the driver. Once you have uninstalled the previous driver, please be sure to restart your computer before installing the newer version.

2. Double-click on the ZIP file to decompress the OS X driver package.

3. Double-click on the Lynx_OSX.pkg file to start the driver installation process.

4. Simply follow the instructions presented. You will be prompted for your administrator password and you must enter the password to install the driver.

5. Restart the computer.

6. When the computer restarts, the driver will be loaded automatically.

Revision History

Version 1.0 Build 58K BETA March 13, 2020

1. Aurora(n)-TB, Aurora(n)-TB3, Hilo-TB, Hilo-TB3 now have the sample rate and sync source read from the device upon driver load so the device retains the sample rate and sync source, not the driver. This prevents a cable disconnection from overriding the sample rate or sync source stored on the device.

2. Lynx Mixer > Settings > Advanced > Adapter Settings > Channel Mode now controls the number of channels shown for a classic Aurora 8-TB where previously it was fixed at 16-channels. Channel Mode in Lynx Mixer for classic Aurora 8-TB now allows 2 thru 16-channels to be selected.

Version 1.0 Build 58J BETA February 17, 2020

1. Added support for DB-ADAT connected to LM-DIG inside Aurora(n).

2. Added NControl to driver package.

2.1 Supports DB-ADAT.

2.2 Fixes issue with Mic Pre not showing Gain when in Hi-Z mode.

2.3 Fixes issue with About box not showing driver version info properly.

3. Changed to "Packages.app" for installer to allow for notarization on Catalina

4. Added register update after card info write to prevent streaming issues after an EEPROM write.

5. Saves Hardware Payload Size in EEPROM instead of MixerState.xml so it is restored properly if the device is plugged in or turned on after the Mac has started.

6. Lynx Mixer now shows and can select clock sources for LM-DIG and/or DB-ADAT with Firmware 1.21 on Aurora(n).

7. Changed smallest Hardware Payload Size when on "Auto" to 8 (from 4).

8. Added NControl 1.0.0 to driver installation package. NControl will be installed into the /Applications folder and will automatically be launched if the user launches Lynx Mixer with an Aurora(n)-TB3 (which doesn't support Lynx Mixer).

Version 1.0 Build 58I BETA November 14, 2019

1. Fixed issue with CARDID read on driver load that might cause firmware updates to timeout.

Version 1.0 Build 58H BETA October 10, 2019

1. Fixed issue with Lynx Mixer not allowing mute changes for sources to anything other than Out 1&2 (introduced on 58G).

Version 1.0 Build 58G BETA September 20, 2019

1. Driver and all applications are 64-bit and notarized by Apple for Mojave (10.14) and Catalina (10.15) and up.

2. Changed interface for FWUpdate to 64-bit. Older versions of FWUpdate will no longer function. User must use FWUpdate for 58G if a firmware update is required.

3. Sample offset fixed for Aurora(n)-TB. Added one sample for play and one sample for record.

4. Now includes Hilo Remote 1.0.19.

4.1. Hilo Remote no longer automatically resizes the window based on the number of channels.

4.2. Added "Advanced" menu option of connection method is Thunderbolt which may contain the following menu options depending on hardware configuration:

4.2.1. Added "Adapter Settings" dialog to allow adapter settings previously only available with Lynx Mixer to be changed with Hilo Remote.

4.2.2. Please note: This setting is for advanced use and normally should never need to be changed by the end user. Added "Hardware Payload Size". This should normally be left on "Auto" to allow the driver to determine the payload size (see note 5 below).

4.2.3. Please note: This setting is for advanced use and normally should never need to be changed by the end user. Added "Show PCIe DMA Completion Latency". This option will temporarily display the PCI Express DMA completion latency on the toolbar while streaming. This setting is not saved so each launch of Hilo Remote will have this option unchecked. The latency value can be used in conjunction with the Settings > Advanced > Hardware Payload Size to insure glitch free streaming. The current maximum value will be displayed in both microseconds and samples (adjusted for the current sample rate). The Hardware Payload Size should always be double the worst-case latency number in samples. The software buffer size should always be a minimum of 4 times the Hardware Payload Size.

5. Changed how the Hardware Payload Size is automatically calculated. The default values are 8 samples for 44.1kHz and 48kHz; 16 for 88.2kHz and 96kHz; and 32 for 176.4kHz and 192kHz. If Advanced > Hardware Payload Size is set to "Auto", each time the streaming is stopped, the driver evaluates the computers performance and may set a new default Hardware Payload Size if the driver based on the that performance measurement. This may result in either a higher Hardware Payload Size being selected, or a lower Hardware Payload Size depending on the speed of the computers PCIe DMA Completion Latency value.

6. In Lynx Mixer: Changed "Hardware Buffer Size" to "Hardware Payload Size" to keep it from being confused with the software buffer size. This should normally be left on "Auto" to allow the driver to determine the payload size (see note 5 above).

7. Please note: This setting is for advanced use and normally should never need to be changed by the end user. In Lynx Mixer: Added "Show PCIe DMA Completion Latency". This option will temporarily display the PCI Express DMA completion latency on the toolbar while streaming. This setting is not saved so each launch of Lynx Mixer will have this option unchecked. The latency value can be used in conjunction with the Settings > Advanced > Hardware Payload Size to insure glitch free streaming. The current maximum value will be displayed in both microseconds and samples (adjusted for the current sample rate). The Hardware Payload Size should always be double the worst-case latency number in samples. The software buffer size should always be a minimum of 4 times the Hardware Payload Size.

8. In Lynx Mixer: Added the ability to change the Sync Source on the Aurora(n)-TB. Please note that Firmware 6.4 is required on the LT-TB for this to function properly.

Version 1.0 Build 58E BETA March 1, 2019

1. Driver and all applications are now notarized by Apple for Mojave (10.14) and up.

2. Changed name of Hilo with LT-TB from "LT-TB" to "Hilo-TB".

3. All applications are now 64-bit to avoid warning on Mojave.

4. Transmit FIFO full check now performed for internal MIDI connection on LT-TB.

5. Sample offset fixed for LT-TB 5.5 firmware.

Version 1.0 Build 58D November 14, 2017

1. Added support for Aurora(n) with LM-DIG board.

2. Fixed issue for startup scene on certain configurations.

3. Driver now supports macOS 10.9 to macOS 10.13.

Version 1.0 Build 58C June 2, 2017

1. Added support for Aurora(n)-TB.

Version 1.0 Build 58B May 16, 2016

1. Added work-around for issue with DMAV2PLUS that would occasionally cause dropped samples on input.

2. Added support for fixed recording timing DMAV2PLUS firmware:
AES16e: 14.1
LT-TB: 6.2
E44/E22: 2.1

3. Added support for non-mixable integer format. This allows applications to bypass the Float32 to SignedInt32 conversion (which is bit-perfect, so there is no sonic difference either way).

4. Includes Hilo Remote Version 1.0.12.

5. Added new signing certificate for OS X 10.9 and up.

6. Driver now supports OS X 10.9 to OS X 10.11.

Version 1.0 Build 58 August 27, 2015

1. Added support for DMAV2PLUS for AES16e/LT-TB/E44/E22.
DMAV2PLUS supports the following features:
- Smaller transfer sizes to reduce latency to under 1ms round-trip (96kHz, 32 sample buffer)
DMAV2PLUS is supported with the following firmware:
AES16e: 14.0
LT-TB: 6.0
E44/E22: 2.0

2. Added new controls in Lynx Mixer to support DMAV2PLUS. Settings > Advanced > Hardware Buffer Size. This settings should be left at 'Auto' unless you are working with Lynx Technical Support on a specific issue. Changing this control sets the amount of audio buffered in the hardware. The smaller the number the faster the CPU must respond to interrupts before audio breaks up.

3. Includes Hilo Remote Version 1.0.11.

Version 1.0 Build 57A April 9, 2015

1. Added support for 32-bit Kernel for OS X 10.6 and 10.7.

2. Fixed issue that caused Build 57 driver to not load properly on OS X 10.8.

3. Included Hilo Remote 1.0.0.8.

Version 1.0 Build 57 December 9, 2014

1. Added full support for E44 and E22 PCI Express cards.

2. Corrected issue with Hilo-TB where the delay compensation was off by 1 sample for input and output.

3. Included Hilo Remote 1.0.0.6.

4. Added support for 2, 4 and 8-channel modes (in addition to 16, 24 and 32) for AES16e and LT-TB.

Version 1.0 Build 56 February 7, 2014

1. Added full support for LT-TB Thunderbolt adapter for Aurora and Hilo converters.

2. Added new Lynx Mixer application which gives the following new features:

* Tabs for each adapter installed instead of a separate floating window.

* Adapter; Record and Play pane may be displayed

* Rate Lock now available in OS X, which allows the sample rate to be fixed.

* Mixer Lock now available in OS X, which keeps the user for accidentally changing any control.

* Same look and feel for both Windows and OS X.

* Saves scenes in a standard XML file which are no longer version or OS specific.

* Added "Disable CPU Power Management" in driver which will turn off CPU power management whenever the driver is streaming. This may cause additional power draw for your computer while streaming audio, which may result in shorter on-battery time and higher heat generated. You may disable this new feature by un-checking the menu item while streaming is not active. If glitches in audio playback occur at higher sample rates or higher numbers of channels, we recommend leaving this item checked.

* For the AES16e+Aurora combo, new Aurora menu items appear within the Settings menu. This replaces Aurora Remote Control which is no longer needed for the AES16e+Aurora combo.

* New method for controlling the monitor sources.

* Inputs and Outputs change name based on what is connected. For the AES16e by itself, I/O will be labeled as Digital In and Digital Out. For the AES16e+Aurora combo, I/O will be labeled as Analog In and Analog Out.

* LS-ADAT fully supported with "ADAT Clock Source" selection in Settings Menu and LStream clock lockout for when the ADAT Clock Source is set to Slave.

* For the Aurora-TB and AES16e+Aurora combo, the Adapter Settings dialog now flashes the front panel of the Aurora when each device is selected. This allows easy identification when selecting the order of the adapters.

3. When driver is operating in 16-channel mode, outputs 17-32 (AES16e: ADAT or AES50 / Aurora 16-TB: AES/EBU) are mirrored from the first 16-channels.

4. When setting up an aggregate device in Audio/MIDI Setup, it is important to: Clock all devices from the same source; Set the Sync Source in Lynx Mixer to External for all "slave" devices (please note setting the clock source in Audio/MIDI setup has been removed); Turn "Drift/Resample" off for all "slave" devices in Audio/MIDI setup.

Version 1.0 Build 55 November 2, 2013

1. Added full support for OS X 10.9 (Mavericks). Installer and driver are now digitally signed (which is required by OS X 10.9). Signed driver is installed in /Library/Extensions and unsigned driver is installed in /System/Library/Extensions (for OS X 10.6; 10.7 and 10.8) as required by Apple.

2. Channel mode and card order (for a multi-card system) can now be set from within Lynx Mixer. Lynx Mixer > Settings > Adapter Settings. Please note that you must restart the computer for these settings to take effect. You must have firmware version 12.11 on your AES16e for this to work properly.

3. Remove ability to control output volumes from Audio/MIDI Setup. If you need this capability, please use Build 54.

4. Changed where Lynx Mixer stores the last used scene for restart. It is now stored in the Home Folder/Library/Preferences.

5. Added complete support for Thunderbolt hot plug and unplug. Please note that for some Thunderbolt chassis, OS X 10.8.5 is required for hot plug to work properly.

6. The AES16e-50 card defaults now has the AES50 port routed for all of the inputs.

Version 1.0 Build 54 August 1, 2012

1. Added full support for OS X 10.8 (Mountain Lion). Installer is now digitally signed (which is required by OS X 10.8).

2. Installer can now change from one channel mode to another (16/24/32) without rebooting the computer. Please note that you may need to uninstall the previous driver using the Lynx OS X Driver Uninstaller (see link above) before installing this driver to allow the channel mode change without reboot feature to work properly.

3. Added support for 24-channel mode.

4. Lynx Mixer now supports 16/24/32-channel mode and shows all controls for each mode. The channel mode currently selected is shown in About Lynx Mixer.

5. Audio/MIDI Setup can now control the output volumes, output mutes, input mutes and feed-through mutes. This allows the user to change these controls without launching Lynx Mixer (and also allows applications other than Lynx Mixer to change these controls).

6. Lynx Mixer now saves/restores all 32-channels upon exiting Lynx Mixer which allows channels 17-32 to remember the input routing through a reboot.

7. Increased the number of active devices to match the maximum number of devices available (except for 4X rates where it maxes out at 8 devices / 16 channels). Previously it was set to 8; 8 and 4.

Version 1.0 Build 53 March 13, 2012

1. Added full support for Thunderbolt expansion chassis. Implements hot-plugging and unplugging as well as sleep mode. Please note that Thunderbolt expansion chassis with the Lynx Audio Card must be connected and enabled when powering on the Macintosh otherwise the boot-loader will not allocate resources for the device and the driver will not be able to load.

2. Defaulted "Allow Clock Source Change while Active" to TRUE. Previously this control might get set to FALSE when doing a Restore Defaults, which would keep some applications from being able to change the sample rate until the streaming was stopped.

Version 1.0 Build 52 July 22, 2011

1. Set "Allow Clock Source Change while Active" to TRUE when loading driver and starting streaming.

Version 1.0 Build 51 March 2, 2011

1. Internal Test Builds.

Version 1.0 Build 50 December 8, 2010

1. Added support for 64-bit kernel.

2. Removed "Output Select" from LS-ADAT page in Lynx Mixer when running with an AES16e.

3. Added additional error messages to the kernel.log (Applications > Utilities > Console > kernel.log) if the driver fails to load.

4. This is an Intel Only Build compatible with OS X 10.6 (Snow Leopard) 32-bit and 64-bit kernel.

Version 1.0 Build 49 March 9, 2010

1. Added support for AES16e-50.

2. Added support for AES16e Firmware Build 11, which includes 64x32 mixer. Please note that driver defaults to 8 record and 8 play devices active so to use all 32-channels (16-devices) will require changing the Device Settings from within Lynx Mixer. Only the first 16-channels are routable on the Record/Play page (the top 16-channels are defaulted to LStream). Only the first 16-channels are routable on the Outputs page (the top 16-channels are defaulted to 1:1 from the play devices). This just means that it is not possible to do a record monitor (without software latency) on channels 17-32.

3. This is an Intel Only Build to make it compatible with OS X 10.6 (Snow Leopard) 32-bit kernel.

Version 1.0 Build 48i October 6, 2009

1. Fixed issue where Record Sources may be incorrectly listed as AES16 Digital Inputs instead of LynxTWO/L22 Inputs.

2. Removed MIDI Plugin.

3. This is an Intel Only Build to make it compatible with OS X 10.6 (Snow Leopard) 32-bit kernel.

Version 1.0 Build 47 November 13, 2008

1. Fixed issue where restoring scenes may cause kernel panic on LynxTWO/L22.

Version 1.0 Build 46 August 7, 2008

1. Added FWUpdate support for AES16e.

2. Fixed LynxTWORestoreSettings so it now runs on system startup.

3. Added About Box to Lynx Mixer. Please note when you open the About Box it places the text of the About Box into the clipboard so you can paste it to an email or our support forum without having to retype any information.

5. Fixed Sleep support so system can now go to Sleep and Resume from sleep without a Kernel Panic.

6. Fixed Sample Rate select control in Lynx Mixer so it always show the correct sample rate instead of occasionally being blank.

7. Renamed all devices (including MIDI) to show consistent device names.

Version 1.0 Build 45 April 17, 2008

1. No FWUpdate support for AES16e.

2. Fixed Logic 8 set 192kHz sample rate issue.

3. Included LynxRestoreSettings.

4. Saving scenes now saves all controls.

5. Fixed AES16-SRC and AES16e-SRC adapter pages.

Version 1.0 Build 44 April 11, 2008

1. LynxRestoreSettings is not included.

2. Saving a scene in Lynx Mixer will not save all of the controls. This just means that when you boot the Lynx Mixer will always start with the default settings..

4. Fixed Logic 8 set sample rate issue.

5. Updated Lynx Mixer AES16 Adapter page so status controls are color coded.

6. Fixed Lynx Mixer for PPC so font changes don't crash the program.

7. Fixed Interface to Aurora Remote so launching ARC will not Kernel Panic the computer.

Version 1.0 Build 43 April 1, 2008

1. Added support AES16e.

2. Universal Binary. Will work with either Intel or PPC Macintosh.

Version 1.01 Build 42 April 14, 2006

1. Added support for Aurora Remote and Aurora Update applications.

2. Renamed installer package to Lynx_OSX_xx.pkg.

3. Changed to ZIP file format for installer package.

4. Holding down the 'control' key while changing a main output volume now changes all 16 main output volumes together. The shift key still changes stereo pairs.

5. Holding down the 'control' key while selecting the monitor source or record source sets all the monitor sources to the right of the current control to next valid source.

6. Driver now supports both big endian and little endian firmware. This means if the Lynx PCI audio card already has Windows firmware on it, there is no need to update it to Macintosh firmware. All future firmware releases will be little endian (Windows) only. Please Note: This change allows the driver to use a Lynx PCI audio card with either Windows or Macintosh firmware. This driver will only work on a Macintosh with G5 and G4 processors, not Intel processors.

7. L2Update programs X21 and older will no longer function with this driver. If you must use an older L2Update program, first DesInstall this driver, restart the computer, run L2Update, power down then power back up and reinstall the driver.

Version 1.01 Build 41 March 6, 2006

1. Internal Test Build.

Version 1.01 Build 40 June 2, 2005

1. Fixed permissions issue for OSX 10.4 with StartupItems.

2. Fixed Recalibrate Converters button that was broken in Build 39..

3. Fixed audio erasure playback issue that was broken in Build 39. This would cause a 'stuttering' sound when multiple applications tried to playback audio from the same device (such as iTunes and Peak).

4. Fixed Restore Settings problem that may overwrite some trim controls values.

5. Fixed Restore Settings version so older settings files will no longer load.

6. Driver now only advertises to applications that the AES16 can do 32kHz to 192kHz. Previously the driver would advertise it could do 11.025 & 22.05kHz when it actually could not.

Version 1.01 Build 39 May 10, 2005

1. Changed how the Sample Clock Source selection works. Now, the control 'Preferred Clock Source' allows selection of the desired sample clock source. Once every 250 milliseconds (4 times a second) the sample clock source is evaluated by looking at the appropriate System Clock Rate (Frequency Counter next to the Preferred Clock Source selection button) to determine if the Preferred Clock Source is valid. If the clock source is valid, the driver switches the Sample Clock Source to the Preferred Clock Source. If at any time the Preferred Clock Source becomes invalid (clock cable disconnected, external gear that is feeding the clock is turned off), the driver changes the Sample Clock Source back to Internal, even if the card has a device that is actively playing or recording.

2. Removed the 'Sample Clock Reference' control as it was no longer needed because the driver automatically detects the different clock references (Word/Word256/13.5MHz/27MHz).

3. Added 'Rate Lock' control. Default is OFF. When ON, the driver will ignore all requests to change the Sample Clock Rate, including those coming from applications. The effectively causes all files not running at the currently selected clock rate to be software sample rate converted (if available) during playback/recording. When clocking to an external word clock, the Rate Lock function is effectively ON regardless of this switch setting, and the rate is locked to the same rate of the incoming word clock.

4. Fixed a problem on startup that would cause the driver to be out-of-sync with the hardware. This caused additional latency to be added to the audio stream.

5. Changed the number of transfers per interrupt from 2 to 8, which reduces the CPU load for processing interrupts.

6. Added output mixer source volume controls to Lynx Mixer Outputs page. This allows individual volume control over each source going to each output for custom mixes. Note: Holding down the shift key will change the volumes in stereo pairs.

Version 1.01 Build 38 December 22, 2004

1. The driver now recognizes Lynx L22 with serial numbers 230408XXXX and LynxTWO-A with serial numbers 200401XXXX as having the Rev A analog to digital converter chip. This corrects for a phase problem between channels 1 & 2 (and 3 & 4 on the LynxTWO-A) during recording. PLEASE NOTE: Only cards with these two specific serial number sequences would have exhibited any phase problems during recording and this driver corrects the issue.

Version 1.01 Build 37 December 9, 2004

1. Renamed 'LynxTWO Mixer' to 'Lynx Mixer'.

2. Fixed AES16-SRC Adapter Page in Lynx Mixer to correctly display SRC Enable & SRC Match Phase controls upon startup.

3. Lynx Mixer now saves the state of all the AES16 controls upon exiting and when saving a Scene.

4. Added Settings > Device Settings dialog box to Lynx Mixer to allow for configuration of the driver performance. PLEASE NOTE: The driver must not be active when making changes to the Device Settings dialog box. You must manually ensure the the transfer size set in the Lynx Mixer is less than or equal to the buffer size set in the application, otherwise audio break-up may occur. Reducing the number of active devices does not change how the driver appears inside an application, it only turns off the PCI Bus transfers for those devices - thus freeing the system to do other work.

5. Lynx Mixer now only shows the appropriate Settings menu items for the type of card in use.

Version 1.01 Build 36 June 25, 2004

1. First non-beta release of driver.

2. Added support for changing the sample clock source from within applications, such as Nuendo and Audio & MIDI Setup.

3. Put the maximum limit on number of devices at high sample rate (>96kHz) to 5 (giving 10in+10out channels).

Version 1.01 Build 35 June 9, 2004

1. Changed when the time stamp is reported to fix problem with larger record buffers and record buffer wrapping problem.

Version 1.01 Build 34 May 28, 2004

1. Changed how current position is reported to keep erase head getting too close to the playback head.

2. Added Restore Defaults to LynxTWO Mixer Application.

Version 1.01 Build 33 April 13, 2004

1. Complete rewrite of ISR and buffer handling to improve latency performance. Internal Release Only.

Version 1.01 Build 32 March 25, 2004

1. Changed how the DMA transfers are handled to improve reliability (GLIMIT to 256, SO to 256).

Version 1.01 Build 31 March 9, 2004

1. Fixed a problem that misreported the latency to CoreAudio.

2. Changed how the DMA transfers are handled to improve latency performance (GLIMIT to 32, SO to 32).

3. Changed the DMA buffer size to 16 x 256 sample-frames.

4. Fixed the LS-ADAT window to correctly display the position from the Sync In port.

5. Changed the frequency counters in the LynxTWO Mixer to show only one decimal point of accuracy in the kHz range.

6. Fixed a problem with the AES16-SRC Adapter Page that wouldn't allow enabling of the SRC Check Box.

7. Put the maximum limit on number of devices at high sample rate (>96kHz) to 2 (giving 4in+4out channels) as a temporary measure until the next rev of the driver.

Version 1.01 Build 30 January 12, 2004

1. Added support for the AES16 and AES16-SRC.

Version 1.01 Build 29 October 17, 2003

1. Put the maximum limit on number of devices at high sample rate (>96kHz) back to 4 (giving 8in+8out channels).

Version 1.01 Build 28 October 11, 2003

1. Changed the Record Source Menus to not show any check-marks.

2. Put the maximum limit on number of devices at high sample rate (>96kHz) to 5 (giving 10in+10out channels).

Version 1.01 Build 27 October 15, 2003

1. Added Record Source Lookup for Output Page in Lynx Mixer.

Version 1.01 Build 26 October 14, 2003

1. Record Sources Menu in Record/Play page is now adapter specific.

Version 1.01 Build 25 October 11, 2003

1. Fixed a problem that caused audio breakup at higher sample rates (>96kHz).

Version 1.01 Build 24 October 8, 2003

1. Increased the "tolerance" for overruns from 0 to 8.

Version 1.01 Build 23 October 4, 2003

1. Fixed a problem that caused the device to not play anything after using a high sampling rate (>96kHz).

2. Put the maximum limit on number of devices at high sample rate (>96kHz) to 4 (giving 8in+8out channels).

3. Improved overrun detection and recovery.

Version 1.01 Build 22 October 2, 2003

1. Changed the AudioEngine to only prepare and use 6 devices if sampling rate is above 96kHz.

2. Create just one multi-channel device to work around sample rate setting issue with Nuendo 2 & Cubase SX.

Version 1.01 Build 20 September 15, 2003

1. Using the new HalMIDIDevice to fix timecode conversion.

2. Minor improvements in the mixer - Depth popup clipping fixed.

3. Set the dBScale bitmap transparency.

Version 1.01 Build 19 September 11, 2003

1. Under some circumstances the HAL MIDI device was not getting the start call.

2. Some changes to the MIDI Send procedure.

3. Added the MTC Source menu to the mixer.

Version 1.01 Build 18 September 9, 2003

1. The mixer windows are now staggered on the main screen so that you can immediately see multiple windows if there are multiple LynxTWOs in the machine.

2. The MIDI driver is now included with the installer.

Version 1.01 Build 17 August 28, 2003

1. Removed reading of Digital Input status on Adapter page to prevent Mixer from locking up certain Macs.

Version 1.01 Build 16 August 11, 2003

1. Added setting up the sample offset parameter (to help with noise).

2. Added Settings menu functionality.

Version 1.01 Build 15 July 7, 2003

1. Added ability to Load/Save Scenes.

2. Added code to save mixer settings on application close (that's used at bootup).

3. Changed the name of Inputs tab to Record/Play.

4. Added the dB scale display to Outputs and Record/Play page.

5. Changed the name (and functionality) of LS-AES tabs to indicate the LStream ports.

6. Centering window on startup.

Version 1.01 Build 14 July 1, 2003

1. Inputs page now active.

2. Outputs page now active.

Version 1.01 Build 13 June 27, 2003

1. Added code for supporting Mixer controls.

2. Added code to support Kext Interface versioning.

3. Improved time-stamping by taking one on entry to the ISR.

4. Added code to specify sample latency (safety offset).

5. Added LynxTWO Mixer with Adapter Page controls functional. LynxTWO Mixer is installed in the Applications Folder.
Please Note: If you choose an Sample Clock Source other than Internal and then try to play/record something, you must manually insure that the Sample Clock Source has a valid clock running or CoreAudio will get corrupted and only a reboot will allow you to use the audio engine again.

Version 1.01 Build 12 June 18, 2003

1. Changed when the interrupt is enabled to prevent lockups on boot.

Version 1.01 Build 11 June 13, 2003

1. Using optimized float/int conversion routines.

2. Using the last input device for interrupt control/position report.

3. Added the user-mode interface so as to make it work with L2Update.

Version 1.01 Build 10 May 22, 2003

1. Now reporting position based on the "current" DMA buffer block only.

2. Using fewer interrupts.

3. Using the primary interrupt handler for all processing.

4. Added "names" (Play N, Record N) for Streams.

5. Over/under run recovery improvements.

Version 1.0 Build 09 May 16, 2003

1. Driver now has interrupts on only for the last device that is active. This reduces the number of interrupts on the PCI bus.

Version 1.0 Build 08 May 12, 2003

1. Added buffer overrun detection/recovery.

2. Changed the DMA buffer size to 8 x 256 sample-frames.

Version 1.0 Build 07 May 7, 2003

1. First public beta release of driver.

.

-end-

Please read this entire document before proceeding with the installation of this driver.

Installation Notes

1. If you installed a previous version of this driver, please uninstall it first. To uninstall the driver, please run the Uninstall Lynx Driver application included with the driver. Once you have uninstalled the previous driver, please be sure to restart your computer before installing the newer version.

2. Double-click on the ZIP file to decompress the OS X driver package.

3. Double-click on the Lynx_OSX.pkg file to start the driver installation process.

4. Simply follow the instructions presented. You will be prompted for your administrator password and you must enter the password to install the driver.

5. Restart the computer.

6. When the computer restarts, the driver will be loaded automatically.

Revision History

Version 1.0 Build 58K BETA March 13, 2020

1. Aurora(n)-TB, Aurora(n)-TB3, Hilo-TB, Hilo-TB3 now have the sample rate and sync source read from the device upon driver load so the device retains the sample rate and sync source, not the driver. This prevents a cable disconnection from overriding the sample rate or sync source stored on the device.

2. Lynx Mixer > Settings > Advanced > Adapter Settings > Channel Mode now controls the number of channels shown for a classic Aurora 8-TB where previously it was fixed at 16-channels. Channel Mode in Lynx Mixer for classic Aurora 8-TB now allows 2 thru 16-channels to be selected.

Version 1.0 Build 58J BETA February 17, 2020

1. Added support for DB-ADAT connected to LM-DIG inside Aurora(n).

2. Added NControl to driver package.

2.1 Supports DB-ADAT.

2.2 Fixes issue with Mic Pre not showing Gain when in Hi-Z mode.

2.3 Fixes issue with About box not showing driver version info properly.

3. Changed to "Packages.app" for installer to allow for notarization on Catalina

4. Added register update after card info write to prevent streaming issues after an EEPROM write.

5. Saves Hardware Payload Size in EEPROM instead of MixerState.xml so it is restored properly if the device is plugged in or turned on after the Mac has started.

6. Lynx Mixer now shows and can select clock sources for LM-DIG and/or DB-ADAT with Firmware 1.21 on Aurora(n).

7. Changed smallest Hardware Payload Size when on "Auto" to 8 (from 4).

8. Added NControl 1.0.0 to driver installation package. NControl will be installed into the /Applications folder and will automatically be launched if the user launches Lynx Mixer with an Aurora(n)-TB3 (which doesn't support Lynx Mixer).

Version 1.0 Build 58I BETA November 14, 2019

1. Fixed issue with CARDID read on driver load that might cause firmware updates to timeout.

Version 1.0 Build 58H BETA October 10, 2019

1. Fixed issue with Lynx Mixer not allowing mute changes for sources to anything other than Out 1&2 (introduced on 58G).

Version 1.0 Build 58G BETA September 20, 2019

1. Driver and all applications are 64-bit and notarized by Apple for Mojave (10.14) and Catalina (10.15) and up.

2. Changed interface for FWUpdate to 64-bit. Older versions of FWUpdate will no longer function. User must use FWUpdate for 58G if a firmware update is required.

3. Sample offset fixed for Aurora(n)-TB. Added one sample for play and one sample for record.

4. Now includes Hilo Remote 1.0.19.

4.1. Hilo Remote no longer automatically resizes the window based on the number of channels.

4.2. Added "Advanced" menu option of connection method is Thunderbolt which may contain the following menu options depending on hardware configuration:

4.2.1. Added "Adapter Settings" dialog to allow adapter settings previously only available with Lynx Mixer to be changed with Hilo Remote.

4.2.2. Please note: This setting is for advanced use and normally should never need to be changed by the end user. Added "Hardware Payload Size". This should normally be left on "Auto" to allow the driver to determine the payload size (see note 5 below).

4.2.3. Please note: This setting is for advanced use and normally should never need to be changed by the end user. Added "Show PCIe DMA Completion Latency". This option will temporarily display the PCI Express DMA completion latency on the toolbar while streaming. This setting is not saved so each launch of Hilo Remote will have this option unchecked. The latency value can be used in conjunction with the Settings > Advanced > Hardware Payload Size to insure glitch free streaming. The current maximum value will be displayed in both microseconds and samples (adjusted for the current sample rate). The Hardware Payload Size should always be double the worst-case latency number in samples. The software buffer size should always be a minimum of 4 times the Hardware Payload Size.

5. Changed how the Hardware Payload Size is automatically calculated. The default values are 8 samples for 44.1kHz and 48kHz; 16 for 88.2kHz and 96kHz; and 32 for 176.4kHz and 192kHz. If Advanced > Hardware Payload Size is set to "Auto", each time the streaming is stopped, the driver evaluates the computers performance and may set a new default Hardware Payload Size if the driver based on the that performance measurement. This may result in either a higher Hardware Payload Size being selected, or a lower Hardware Payload Size depending on the speed of the computers PCIe DMA Completion Latency value.

6. In Lynx Mixer: Changed "Hardware Buffer Size" to "Hardware Payload Size" to keep it from being confused with the software buffer size. This should normally be left on "Auto" to allow the driver to determine the payload size (see note 5 above).

7. Please note: This setting is for advanced use and normally should never need to be changed by the end user. In Lynx Mixer: Added "Show PCIe DMA Completion Latency". This option will temporarily display the PCI Express DMA completion latency on the toolbar while streaming. This setting is not saved so each launch of Lynx Mixer will have this option unchecked. The latency value can be used in conjunction with the Settings > Advanced > Hardware Payload Size to insure glitch free streaming. The current maximum value will be displayed in both microseconds and samples (adjusted for the current sample rate). The Hardware Payload Size should always be double the worst-case latency number in samples. The software buffer size should always be a minimum of 4 times the Hardware Payload Size.

8. In Lynx Mixer: Added the ability to change the Sync Source on the Aurora(n)-TB. Please note that Firmware 6.4 is required on the LT-TB for this to function properly.

Version 1.0 Build 58E BETA March 1, 2019

1. Driver and all applications are now notarized by Apple for Mojave (10.14) and up.

2. Changed name of Hilo with LT-TB from "LT-TB" to "Hilo-TB".

3. All applications are now 64-bit to avoid warning on Mojave.

4. Transmit FIFO full check now performed for internal MIDI connection on LT-TB.

5. Sample offset fixed for LT-TB 5.5 firmware.

Version 1.0 Build 58D November 14, 2017

1. Added support for Aurora(n) with LM-DIG board.

2. Fixed issue for startup scene on certain configurations.

3. Driver now supports macOS 10.9 to macOS 10.13.

Version 1.0 Build 58C June 2, 2017

1. Added support for Aurora(n)-TB.

Version 1.0 Build 58B May 16, 2016

1. Added work-around for issue with DMAV2PLUS that would occasionally cause dropped samples on input.

2. Added support for fixed recording timing DMAV2PLUS firmware:
AES16e: 14.1
LT-TB: 6.2
E44/E22: 2.1

3. Added support for non-mixable integer format. This allows applications to bypass the Float32 to SignedInt32 conversion (which is bit-perfect, so there is no sonic difference either way).

4. Includes Hilo Remote Version 1.0.12.

5. Added new signing certificate for OS X 10.9 and up.

6. Driver now supports OS X 10.9 to OS X 10.11.

Version 1.0 Build 58 August 27, 2015

1. Added support for DMAV2PLUS for AES16e/LT-TB/E44/E22.
DMAV2PLUS supports the following features:
- Smaller transfer sizes to reduce latency to under 1ms round-trip (96kHz, 32 sample buffer)
DMAV2PLUS is supported with the following firmware:
AES16e: 14.0
LT-TB: 6.0
E44/E22: 2.0

2. Added new controls in Lynx Mixer to support DMAV2PLUS. Settings > Advanced > Hardware Buffer Size. This settings should be left at 'Auto' unless you are working with Lynx Technical Support on a specific issue. Changing this control sets the amount of audio buffered in the hardware. The smaller the number the faster the CPU must respond to interrupts before audio breaks up.

3. Includes Hilo Remote Version 1.0.11.

Version 1.0 Build 57A April 9, 2015

1. Added support for 32-bit Kernel for OS X 10.6 and 10.7.

2. Fixed issue that caused Build 57 driver to not load properly on OS X 10.8.

3. Included Hilo Remote 1.0.0.8.

Version 1.0 Build 57 December 9, 2014

1. Added full support for E44 and E22 PCI Express cards.

2. Corrected issue with Hilo-TB where the delay compensation was off by 1 sample for input and output.

3. Included Hilo Remote 1.0.0.6.

4. Added support for 2, 4 and 8-channel modes (in addition to 16, 24 and 32) for AES16e and LT-TB.

Version 1.0 Build 56 February 7, 2014

1. Added full support for LT-TB Thunderbolt adapter for Aurora and Hilo converters.

2. Added new Lynx Mixer application which gives the following new features:

* Tabs for each adapter installed instead of a separate floating window.

* Adapter; Record and Play pane may be displayed

* Rate Lock now available in OS X, which allows the sample rate to be fixed.

* Mixer Lock now available in OS X, which keeps the user for accidentally changing any control.

* Same look and feel for both Windows and OS X.

* Saves scenes in a standard XML file which are no longer version or OS specific.

* Added "Disable CPU Power Management" in driver which will turn off CPU power management whenever the driver is streaming. This may cause additional power draw for your computer while streaming audio, which may result in shorter on-battery time and higher heat generated. You may disable this new feature by un-checking the menu item while streaming is not active. If glitches in audio playback occur at higher sample rates or higher numbers of channels, we recommend leaving this item checked.

* For the AES16e+Aurora combo, new Aurora menu items appear within the Settings menu. This replaces Aurora Remote Control which is no longer needed for the AES16e+Aurora combo.

* New method for controlling the monitor sources.

* Inputs and Outputs change name based on what is connected. For the AES16e by itself, I/O will be labeled as Digital In and Digital Out. For the AES16e+Aurora combo, I/O will be labeled as Analog In and Analog Out.

* LS-ADAT fully supported with "ADAT Clock Source" selection in Settings Menu and LStream clock lockout for when the ADAT Clock Source is set to Slave.

* For the Aurora-TB and AES16e+Aurora combo, the Adapter Settings dialog now flashes the front panel of the Aurora when each device is selected. This allows easy identification when selecting the order of the adapters.

3. When driver is operating in 16-channel mode, outputs 17-32 (AES16e: ADAT or AES50 / Aurora 16-TB: AES/EBU) are mirrored from the first 16-channels.

4. When setting up an aggregate device in Audio/MIDI Setup, it is important to: Clock all devices from the same source; Set the Sync Source in Lynx Mixer to External for all "slave" devices (please note setting the clock source in Audio/MIDI setup has been removed); Turn "Drift/Resample" off for all "slave" devices in Audio/MIDI setup.

Version 1.0 Build 55 November 2, 2013

1. Added full support for OS X 10.9 (Mavericks). Installer and driver are now digitally signed (which is required by OS X 10.9). Signed driver is installed in /Library/Extensions and unsigned driver is installed in /System/Library/Extensions (for OS X 10.6; 10.7 and 10.8) as required by Apple.

2. Channel mode and card order (for a multi-card system) can now be set from within Lynx Mixer. Lynx Mixer > Settings > Adapter Settings. Please note that you must restart the computer for these settings to take effect. You must have firmware version 12.11 on your AES16e for this to work properly.

3. Remove ability to control output volumes from Audio/MIDI Setup. If you need this capability, please use Build 54.

4. Changed where Lynx Mixer stores the last used scene for restart. It is now stored in the Home Folder/Library/Preferences.

5. Added complete support for Thunderbolt hot plug and unplug. Please note that for some Thunderbolt chassis, OS X 10.8.5 is required for hot plug to work properly.

6. The AES16e-50 card defaults now has the AES50 port routed for all of the inputs.

Version 1.0 Build 54 August 1, 2012

1. Added full support for OS X 10.8 (Mountain Lion). Installer is now digitally signed (which is required by OS X 10.8).

2. Installer can now change from one channel mode to another (16/24/32) without rebooting the computer. Please note that you may need to uninstall the previous driver using the Lynx OS X Driver Uninstaller (see link above) before installing this driver to allow the channel mode change without reboot feature to work properly.

3. Added support for 24-channel mode.

4. Lynx Mixer now supports 16/24/32-channel mode and shows all controls for each mode. The channel mode currently selected is shown in About Lynx Mixer.

5. Audio/MIDI Setup can now control the output volumes, output mutes, input mutes and feed-through mutes. This allows the user to change these controls without launching Lynx Mixer (and also allows applications other than Lynx Mixer to change these controls).

6. Lynx Mixer now saves/restores all 32-channels upon exiting Lynx Mixer which allows channels 17-32 to remember the input routing through a reboot.

7. Increased the number of active devices to match the maximum number of devices available (except for 4X rates where it maxes out at 8 devices / 16 channels). Previously it was set to 8; 8 and 4.

Version 1.0 Build 53 March 13, 2012

1. Added full support for Thunderbolt expansion chassis. Implements hot-plugging and unplugging as well as sleep mode. Please note that Thunderbolt expansion chassis with the Lynx Audio Card must be connected and enabled when powering on the Macintosh otherwise the boot-loader will not allocate resources for the device and the driver will not be able to load.

2. Defaulted "Allow Clock Source Change while Active" to TRUE. Previously this control might get set to FALSE when doing a Restore Defaults, which would keep some applications from being able to change the sample rate until the streaming was stopped.

Version 1.0 Build 52 July 22, 2011

1. Set "Allow Clock Source Change while Active" to TRUE when loading driver and starting streaming.

Version 1.0 Build 51 March 2, 2011

1. Internal Test Builds.

Version 1.0 Build 50 December 8, 2010

1. Added support for 64-bit kernel.

2. Removed "Output Select" from LS-ADAT page in Lynx Mixer when running with an AES16e.

3. Added additional error messages to the kernel.log (Applications > Utilities > Console > kernel.log) if the driver fails to load.

4. This is an Intel Only Build compatible with OS X 10.6 (Snow Leopard) 32-bit and 64-bit kernel.

Version 1.0 Build 49 March 9, 2010

1. Added support for AES16e-50.

2. Added support for AES16e Firmware Build 11, which includes 64x32 mixer. Please note that driver defaults to 8 record and 8 play devices active so to use all 32-channels (16-devices) will require changing the Device Settings from within Lynx Mixer. Only the first 16-channels are routable on the Record/Play page (the top 16-channels are defaulted to LStream). Only the first 16-channels are routable on the Outputs page (the top 16-channels are defaulted to 1:1 from the play devices). This just means that it is not possible to do a record monitor (without software latency) on channels 17-32.

3. This is an Intel Only Build to make it compatible with OS X 10.6 (Snow Leopard) 32-bit kernel.

Version 1.0 Build 48i October 6, 2009

1. Fixed issue where Record Sources may be incorrectly listed as AES16 Digital Inputs instead of LynxTWO/L22 Inputs.

2. Removed MIDI Plugin.

3. This is an Intel Only Build to make it compatible with OS X 10.6 (Snow Leopard) 32-bit kernel.

Version 1.0 Build 47 November 13, 2008

1. Fixed issue where restoring scenes may cause kernel panic on LynxTWO/L22.

Version 1.0 Build 46 August 7, 2008

1. Added FWUpdate support for AES16e.

2. Fixed LynxTWORestoreSettings so it now runs on system startup.

3. Added About Box to Lynx Mixer. Please note when you open the About Box it places the text of the About Box into the clipboard so you can paste it to an email or our support forum without having to retype any information.

5. Fixed Sleep support so system can now go to Sleep and Resume from sleep without a Kernel Panic.

6. Fixed Sample Rate select control in Lynx Mixer so it always show the correct sample rate instead of occasionally being blank.

7. Renamed all devices (including MIDI) to show consistent device names.

Version 1.0 Build 45 April 17, 2008

1. No FWUpdate support for AES16e.

2. Fixed Logic 8 set 192kHz sample rate issue.

3. Included LynxRestoreSettings.

4. Saving scenes now saves all controls.

5. Fixed AES16-SRC and AES16e-SRC adapter pages.

Version 1.0 Build 44 April 11, 2008

1. LynxRestoreSettings is not included.

2. Saving a scene in Lynx Mixer will not save all of the controls. This just means that when you boot the Lynx Mixer will always start with the default settings..

4. Fixed Logic 8 set sample rate issue.

5. Updated Lynx Mixer AES16 Adapter page so status controls are color coded.

6. Fixed Lynx Mixer for PPC so font changes don't crash the program.

7. Fixed Interface to Aurora Remote so launching ARC will not Kernel Panic the computer.

Version 1.0 Build 43 April 1, 2008

1. Added support AES16e.

2. Universal Binary. Will work with either Intel or PPC Macintosh.

Version 1.01 Build 42 April 14, 2006

1. Added support for Aurora Remote and Aurora Update applications.

2. Renamed installer package to Lynx_OSX_xx.pkg.

3. Changed to ZIP file format for installer package.

4. Holding down the 'control' key while changing a main output volume now changes all 16 main output volumes together. The shift key still changes stereo pairs.

5. Holding down the 'control' key while selecting the monitor source or record source sets all the monitor sources to the right of the current control to next valid source.

6. Driver now supports both big endian and little endian firmware. This means if the Lynx PCI audio card already has Windows firmware on it, there is no need to update it to Macintosh firmware. All future firmware releases will be little endian (Windows) only. Please Note: This change allows the driver to use a Lynx PCI audio card with either Windows or Macintosh firmware. This driver will only work on a Macintosh with G5 and G4 processors, not Intel processors.

7. L2Update programs X21 and older will no longer function with this driver. If you must use an older L2Update program, first DesInstall this driver, restart the computer, run L2Update, power down then power back up and reinstall the driver.

Version 1.01 Build 41 March 6, 2006

1. Internal Test Build.

Version 1.01 Build 40 June 2, 2005

1. Fixed permissions issue for OSX 10.4 with StartupItems.

2. Fixed Recalibrate Converters button that was broken in Build 39..

3. Fixed audio erasure playback issue that was broken in Build 39. This would cause a 'stuttering' sound when multiple applications tried to playback audio from the same device (such as iTunes and Peak).

4. Fixed Restore Settings problem that may overwrite some trim controls values.

5. Fixed Restore Settings version so older settings files will no longer load.

6. Driver now only advertises to applications that the AES16 can do 32kHz to 192kHz. Previously the driver would advertise it could do 11.025 & 22.05kHz when it actually could not.

Version 1.01 Build 39 May 10, 2005

1. Changed how the Sample Clock Source selection works. Now, the control 'Preferred Clock Source' allows selection of the desired sample clock source. Once every 250 milliseconds (4 times a second) the sample clock source is evaluated by looking at the appropriate System Clock Rate (Frequency Counter next to the Preferred Clock Source selection button) to determine if the Preferred Clock Source is valid. If the clock source is valid, the driver switches the Sample Clock Source to the Preferred Clock Source. If at any time the Preferred Clock Source becomes invalid (clock cable disconnected, external gear that is feeding the clock is turned off), the driver changes the Sample Clock Source back to Internal, even if the card has a device that is actively playing or recording.

2. Removed the 'Sample Clock Reference' control as it was no longer needed because the driver automatically detects the different clock references (Word/Word256/13.5MHz/27MHz).

3. Added 'Rate Lock' control. Default is OFF. When ON, the driver will ignore all requests to change the Sample Clock Rate, including those coming from applications. The effectively causes all files not running at the currently selected clock rate to be software sample rate converted (if available) during playback/recording. When clocking to an external word clock, the Rate Lock function is effectively ON regardless of this switch setting, and the rate is locked to the same rate of the incoming word clock.

4. Fixed a problem on startup that would cause the driver to be out-of-sync with the hardware. This caused additional latency to be added to the audio stream.

5. Changed the number of transfers per interrupt from 2 to 8, which reduces the CPU load for processing interrupts.

6. Added output mixer source volume controls to Lynx Mixer Outputs page. This allows individual volume control over each source going to each output for custom mixes. Note: Holding down the shift key will change the volumes in stereo pairs.

Version 1.01 Build 38 December 22, 2004

1. The driver now recognizes Lynx L22 with serial numbers 230408XXXX and LynxTWO-A with serial numbers 200401XXXX as having the Rev A analog to digital converter chip. This corrects for a phase problem between channels 1 & 2 (and 3 & 4 on the LynxTWO-A) during recording. PLEASE NOTE: Only cards with these two specific serial number sequences would have exhibited any phase problems during recording and this driver corrects the issue.

Version 1.01 Build 37 December 9, 2004

1. Renamed 'LynxTWO Mixer' to 'Lynx Mixer'.

2. Fixed AES16-SRC Adapter Page in Lynx Mixer to correctly display SRC Enable & SRC Match Phase controls upon startup.

3. Lynx Mixer now saves the state of all the AES16 controls upon exiting and when saving a Scene.

4. Added Settings > Device Settings dialog box to Lynx Mixer to allow for configuration of the driver performance. PLEASE NOTE: The driver must not be active when making changes to the Device Settings dialog box. You must manually ensure the the transfer size set in the Lynx Mixer is less than or equal to the buffer size set in the application, otherwise audio break-up may occur. Reducing the number of active devices does not change how the driver appears inside an application, it only turns off the PCI Bus transfers for those devices - thus freeing the system to do other work.

5. Lynx Mixer now only shows the appropriate Settings menu items for the type of card in use.

Version 1.01 Build 36 June 25, 2004

1. First non-beta release of driver.

2. Added support for changing the sample clock source from within applications, such as Nuendo and Audio & MIDI Setup.

3. Put the maximum limit on number of devices at high sample rate (>96kHz) to 5 (giving 10in+10out channels).

Version 1.01 Build 35 June 9, 2004

1. Changed when the time stamp is reported to fix problem with larger record buffers and record buffer wrapping problem.

Version 1.01 Build 34 May 28, 2004

1. Changed how current position is reported to keep erase head getting too close to the playback head.

2. Added Restore Defaults to LynxTWO Mixer Application.

Version 1.01 Build 33 April 13, 2004

1. Complete rewrite of ISR and buffer handling to improve latency performance. Internal Release Only.

Version 1.01 Build 32 March 25, 2004

1. Changed how the DMA transfers are handled to improve reliability (GLIMIT to 256, SO to 256).

Version 1.01 Build 31 March 9, 2004

1. Fixed a problem that misreported the latency to CoreAudio.

2. Changed how the DMA transfers are handled to improve latency performance (GLIMIT to 32, SO to 32).

3. Changed the DMA buffer size to 16 x 256 sample-frames.

4. Fixed the LS-ADAT window to correctly display the position from the Sync In port.

5. Changed the frequency counters in the LynxTWO Mixer to show only one decimal point of accuracy in the kHz range.

6. Fixed a problem with the AES16-SRC Adapter Page that wouldn't allow enabling of the SRC Check Box.

7. Put the maximum limit on number of devices at high sample rate (>96kHz) to 2 (giving 4in+4out channels) as a temporary measure until the next rev of the driver.

Version 1.01 Build 30 January 12, 2004

1. Added support for the AES16 and AES16-SRC.

Version 1.01 Build 29 October 17, 2003

1. Put the maximum limit on number of devices at high sample rate (>96kHz) back to 4 (giving 8in+8out channels).

Version 1.01 Build 28 October 11, 2003

1. Changed the Record Source Menus to not show any check-marks.

2. Put the maximum limit on number of devices at high sample rate (>96kHz) to 5 (giving 10in+10out channels).

Version 1.01 Build 27 October 15, 2003

1. Added Record Source Lookup for Output Page in Lynx Mixer.

Version 1.01 Build 26 October 14, 2003

1. Record Sources Menu in Record/Play page is now adapter specific.

Version 1.01 Build 25 October 11, 2003

1. Fixed a problem that caused audio breakup at higher sample rates (>96kHz).

Version 1.01 Build 24 October 8, 2003

1. Increased the "tolerance" for overruns from 0 to 8.

Version 1.01 Build 23 October 4, 2003

1. Fixed a problem that caused the device to not play anything after using a high sampling rate (>96kHz).

2. Put the maximum limit on number of devices at high sample rate (>96kHz) to 4 (giving 8in+8out channels).

3. Improved overrun detection and recovery.

Version 1.01 Build 22 October 2, 2003

1. Changed the AudioEngine to only prepare and use 6 devices if sampling rate is above 96kHz.

2. Create just one multi-channel device to work around sample rate setting issue with Nuendo 2 & Cubase SX.

Version 1.01 Build 20 September 15, 2003

1. Using the new HalMIDIDevice to fix timecode conversion.

2. Minor improvements in the mixer - Depth popup clipping fixed.

3. Set the dBScale bitmap transparency.

Version 1.01 Build 19 September 11, 2003

1. Under some circumstances the HAL MIDI device was not getting the start call.

2. Some changes to the MIDI Send procedure.

3. Added the MTC Source menu to the mixer.

Version 1.01 Build 18 September 9, 2003

1. The mixer windows are now staggered on the main screen so that you can immediately see multiple windows if there are multiple LynxTWOs in the machine.

2. The MIDI driver is now included with the installer.

Version 1.01 Build 17 August 28, 2003

1. Removed reading of Digital Input status on Adapter page to prevent Mixer from locking up certain Macs.

Version 1.01 Build 16 August 11, 2003

1. Added setting up the sample offset parameter (to help with noise).

2. Added Settings menu functionality.

Version 1.01 Build 15 July 7, 2003

1. Added ability to Load/Save Scenes.

2. Added code to save mixer settings on application close (that's used at bootup).

3. Changed the name of Inputs tab to Record/Play.

4. Added the dB scale display to Outputs and Record/Play page.

5. Changed the name (and functionality) of LS-AES tabs to indicate the LStream ports.

6. Centering window on startup.

Version 1.01 Build 14 July 1, 2003

1. Inputs page now active.

2. Outputs page now active.

Version 1.01 Build 13 June 27, 2003

1. Added code for supporting Mixer controls.

2. Added code to support Kext Interface versioning.

3. Improved time-stamping by taking one on entry to the ISR.

4. Added code to specify sample latency (safety offset).

5. Added LynxTWO Mixer with Adapter Page controls functional. LynxTWO Mixer is installed in the Applications Folder.
Please Note: If you choose an Sample Clock Source other than Internal and then try to play/record something, you must manually insure that the Sample Clock Source has a valid clock running or CoreAudio will get corrupted and only a reboot will allow you to use the audio engine again.

Version 1.01 Build 12 June 18, 2003

1. Changed when the interrupt is enabled to prevent lockups on boot.

Version 1.01 Build 11 June 13, 2003

1. Using optimized float/int conversion routines.

2. Using the last input device for interrupt control/position report.

3. Added the user-mode interface so as to make it work with L2Update.

Version 1.01 Build 10 May 22, 2003

1. Now reporting position based on the "current" DMA buffer block only.

2. Using fewer interrupts.

3. Using the primary interrupt handler for all processing.

4. Added "names" (Play N, Record N) for Streams.

5. Over/under run recovery improvements.

Version 1.0 Build 09 May 16, 2003

1. Driver now has interrupts on only for the last device that is active. This reduces the number of interrupts on the PCI bus.

Version 1.0 Build 08 May 12, 2003

1. Added buffer overrun detection/recovery.

2. Changed the DMA buffer size to 8 x 256 sample-frames.

Version 1.0 Build 07 May 7, 2003

1. First public beta release of driver.

.

-end-

Please read this entire document before proceeding with the installation of this driver.

Installation Notes

1. If you installed a previous version of this driver, please uninstall it first. To uninstall the driver, please run the Uninstall Lynx Driver application included with the driver. Once you have uninstalled the previous driver, please be sure to restart your computer before installing the newer version.

2. Double-click on the ZIP file to decompress the OS X driver package.

3. Double-click on the Lynx_OSX.pkg file to start the driver installation process.

4. Simply follow the instructions presented. You will be prompted for your administrator password and you must enter the password to install the driver.

5. Restart the computer.

6. When the computer restarts, the driver will be loaded automatically.

Revision History

Version 1.0 Build 58K BETA March 13, 2020

1. Aurora(n)-TB, Aurora(n)-TB3, Hilo-TB, Hilo-TB3 now have the sample rate and sync source read from the device upon driver load so the device retains the sample rate and sync source, not the driver. This prevents a cable disconnection from overriding the sample rate or sync source stored on the device.

2. Lynx Mixer > Settings > Advanced > Adapter Settings > Channel Mode now controls the number of channels shown for a classic Aurora 8-TB where previously it was fixed at 16-channels. Channel Mode in Lynx Mixer for classic Aurora 8-TB now allows 2 thru 16-channels to be selected.

Version 1.0 Build 58J BETA February 17, 2020

1. Added support for DB-ADAT connected to LM-DIG inside Aurora(n).

2. Added NControl to driver package.

2.1 Supports DB-ADAT.

2.2 Fixes issue with Mic Pre not showing Gain when in Hi-Z mode.

2.3 Fixes issue with About box not showing driver version info properly.

3. Changed to "Packages.app" for installer to allow for notarization on Catalina

4. Added register update after card info write to prevent streaming issues after an EEPROM write.

5. Saves Hardware Payload Size in EEPROM instead of MixerState.xml so it is restored properly if the device is plugged in or turned on after the Mac has started.

6. Lynx Mixer now shows and can select clock sources for LM-DIG and/or DB-ADAT with Firmware 1.21 on Aurora(n).

7. Changed smallest Hardware Payload Size when on "Auto" to 8 (from 4).

8. Added NControl 1.0.0 to driver installation package. NControl will be installed into the /Applications folder and will automatically be launched if the user launches Lynx Mixer with an Aurora(n)-TB3 (which doesn't support Lynx Mixer).

Version 1.0 Build 58I BETA November 14, 2019

1. Fixed issue with CARDID read on driver load that might cause firmware updates to timeout.

Version 1.0 Build 58H BETA October 10, 2019

1. Fixed issue with Lynx Mixer not allowing mute changes for sources to anything other than Out 1&2 (introduced on 58G).

Version 1.0 Build 58G BETA September 20, 2019

1. Driver and all applications are 64-bit and notarized by Apple for Mojave (10.14) and Catalina (10.15) and up.

2. Changed interface for FWUpdate to 64-bit. Older versions of FWUpdate will no longer function. User must use FWUpdate for 58G if a firmware update is required.

3. Sample offset fixed for Aurora(n)-TB. Added one sample for play and one sample for record.

4. Now includes Hilo Remote 1.0.19.

4.1. Hilo Remote no longer automatically resizes the window based on the number of channels.

4.2. Added "Advanced" menu option of connection method is Thunderbolt which may contain the following menu options depending on hardware configuration:

4.2.1. Added "Adapter Settings" dialog to allow adapter settings previously only available with Lynx Mixer to be changed with Hilo Remote.

4.2.2. Please note: This setting is for advanced use and normally should never need to be changed by the end user. Added "Hardware Payload Size". This should normally be left on "Auto" to allow the driver to determine the payload size (see note 5 below).

4.2.3. Please note: This setting is for advanced use and normally should never need to be changed by the end user. Added "Show PCIe DMA Completion Latency". This option will temporarily display the PCI Express DMA completion latency on the toolbar while streaming. This setting is not saved so each launch of Hilo Remote will have this option unchecked. The latency value can be used in conjunction with the Settings > Advanced > Hardware Payload Size to insure glitch free streaming. The current maximum value will be displayed in both microseconds and samples (adjusted for the current sample rate). The Hardware Payload Size should always be double the worst-case latency number in samples. The software buffer size should always be a minimum of 4 times the Hardware Payload Size.

5. Changed how the Hardware Payload Size is automatically calculated. The default values are 8 samples for 44.1kHz and 48kHz; 16 for 88.2kHz and 96kHz; and 32 for 176.4kHz and 192kHz. If Advanced > Hardware Payload Size is set to "Auto", each time the streaming is stopped, the driver evaluates the computers performance and may set a new default Hardware Payload Size if the driver based on the that performance measurement. This may result in either a higher Hardware Payload Size being selected, or a lower Hardware Payload Size depending on the speed of the computers PCIe DMA Completion Latency value.

6. In Lynx Mixer: Changed "Hardware Buffer Size" to "Hardware Payload Size" to keep it from being confused with the software buffer size. This should normally be left on "Auto" to allow the driver to determine the payload size (see note 5 above).

7. Please note: This setting is for advanced use and normally should never need to be changed by the end user. In Lynx Mixer: Added "Show PCIe DMA Completion Latency". This option will temporarily display the PCI Express DMA completion latency on the toolbar while streaming. This setting is not saved so each launch of Lynx Mixer will have this option unchecked. The latency value can be used in conjunction with the Settings > Advanced > Hardware Payload Size to insure glitch free streaming. The current maximum value will be displayed in both microseconds and samples (adjusted for the current sample rate). The Hardware Payload Size should always be double the worst-case latency number in samples. The software buffer size should always be a minimum of 4 times the Hardware Payload Size.

8. In Lynx Mixer: Added the ability to change the Sync Source on the Aurora(n)-TB. Please note that Firmware 6.4 is required on the LT-TB for this to function properly.

Version 1.0 Build 58E BETA March 1, 2019

1. Driver and all applications are now notarized by Apple for Mojave (10.14) and up.

2. Changed name of Hilo with LT-TB from "LT-TB" to "Hilo-TB".

3. All applications are now 64-bit to avoid warning on Mojave.

4. Transmit FIFO full check now performed for internal MIDI connection on LT-TB.

5. Sample offset fixed for LT-TB 5.5 firmware.

Version 1.0 Build 58D November 14, 2017

1. Added support for Aurora(n) with LM-DIG board.

2. Fixed issue for startup scene on certain configurations.

3. Driver now supports macOS 10.9 to macOS 10.13.

Version 1.0 Build 58C June 2, 2017

1. Added support for Aurora(n)-TB.

Version 1.0 Build 58B May 16, 2016

1. Added work-around for issue with DMAV2PLUS that would occasionally cause dropped samples on input.

2. Added support for fixed recording timing DMAV2PLUS firmware:
AES16e: 14.1
LT-TB: 6.2
E44/E22: 2.1

3. Added support for non-mixable integer format. This allows applications to bypass the Float32 to SignedInt32 conversion (which is bit-perfect, so there is no sonic difference either way).

4. Includes Hilo Remote Version 1.0.12.

5. Added new signing certificate for OS X 10.9 and up.

6. Driver now supports OS X 10.9 to OS X 10.11.

Version 1.0 Build 58 August 27, 2015

1. Added support for DMAV2PLUS for AES16e/LT-TB/E44/E22.
DMAV2PLUS supports the following features:
- Smaller transfer sizes to reduce latency to under 1ms round-trip (96kHz, 32 sample buffer)
DMAV2PLUS is supported with the following firmware:
AES16e: 14.0
LT-TB: 6.0
E44/E22: 2.0

2. Added new controls in Lynx Mixer to support DMAV2PLUS. Settings > Advanced > Hardware Buffer Size. This settings should be left at 'Auto' unless you are working with Lynx Technical Support on a specific issue. Changing this control sets the amount of audio buffered in the hardware. The smaller the number the faster the CPU must respond to interrupts before audio breaks up.

3. Includes Hilo Remote Version 1.0.11.

Version 1.0 Build 57A April 9, 2015

1. Added support for 32-bit Kernel for OS X 10.6 and 10.7.

2. Fixed issue that caused Build 57 driver to not load properly on OS X 10.8.

3. Included Hilo Remote 1.0.0.8.

Version 1.0 Build 57 December 9, 2014

1. Added full support for E44 and E22 PCI Express cards.

2. Corrected issue with Hilo-TB where the delay compensation was off by 1 sample for input and output.

3. Included Hilo Remote 1.0.0.6.

4. Added support for 2, 4 and 8-channel modes (in addition to 16, 24 and 32) for AES16e and LT-TB.

Version 1.0 Build 56 February 7, 2014

1. Added full support for LT-TB Thunderbolt adapter for Aurora and Hilo converters.

2. Added new Lynx Mixer application which gives the following new features:

* Tabs for each adapter installed instead of a separate floating window.

* Adapter; Record and Play pane may be displayed

* Rate Lock now available in OS X, which allows the sample rate to be fixed.

* Mixer Lock now available in OS X, which keeps the user for accidentally changing any control.

* Same look and feel for both Windows and OS X.

* Saves scenes in a standard XML file which are no longer version or OS specific.

* Added "Disable CPU Power Management" in driver which will turn off CPU power management whenever the driver is streaming. This may cause additional power draw for your computer while streaming audio, which may result in shorter on-battery time and higher heat generated. You may disable this new feature by un-checking the menu item while streaming is not active. If glitches in audio playback occur at higher sample rates or higher numbers of channels, we recommend leaving this item checked.

* For the AES16e+Aurora combo, new Aurora menu items appear within the Settings menu. This replaces Aurora Remote Control which is no longer needed for the AES16e+Aurora combo.

* New method for controlling the monitor sources.

* Inputs and Outputs change name based on what is connected. For the AES16e by itself, I/O will be labeled as Digital In and Digital Out. For the AES16e+Aurora combo, I/O will be labeled as Analog In and Analog Out.

* LS-ADAT fully supported with "ADAT Clock Source" selection in Settings Menu and LStream clock lockout for when the ADAT Clock Source is set to Slave.

* For the Aurora-TB and AES16e+Aurora combo, the Adapter Settings dialog now flashes the front panel of the Aurora when each device is selected. This allows easy identification when selecting the order of the adapters.

3. When driver is operating in 16-channel mode, outputs 17-32 (AES16e: ADAT or AES50 / Aurora 16-TB: AES/EBU) are mirrored from the first 16-channels.

4. When setting up an aggregate device in Audio/MIDI Setup, it is important to: Clock all devices from the same source; Set the Sync Source in Lynx Mixer to External for all "slave" devices (please note setting the clock source in Audio/MIDI setup has been removed); Turn "Drift/Resample" off for all "slave" devices in Audio/MIDI setup.

Version 1.0 Build 55 November 2, 2013

1. Added full support for OS X 10.9 (Mavericks). Installer and driver are now digitally signed (which is required by OS X 10.9). Signed driver is installed in /Library/Extensions and unsigned driver is installed in /System/Library/Extensions (for OS X 10.6; 10.7 and 10.8) as required by Apple.

2. Channel mode and card order (for a multi-card system) can now be set from within Lynx Mixer. Lynx Mixer > Settings > Adapter Settings. Please note that you must restart the computer for these settings to take effect. You must have firmware version 12.11 on your AES16e for this to work properly.

3. Remove ability to control output volumes from Audio/MIDI Setup. If you need this capability, please use Build 54.

4. Changed where Lynx Mixer stores the last used scene for restart. It is now stored in the Home Folder/Library/Preferences.

5. Added complete support for Thunderbolt hot plug and unplug. Please note that for some Thunderbolt chassis, OS X 10.8.5 is required for hot plug to work properly.

6. The AES16e-50 card defaults now has the AES50 port routed for all of the inputs.

Version 1.0 Build 54 August 1, 2012

1. Added full support for OS X 10.8 (Mountain Lion). Installer is now digitally signed (which is required by OS X 10.8).

2. Installer can now change from one channel mode to another (16/24/32) without rebooting the computer. Please note that you may need to uninstall the previous driver using the Lynx OS X Driver Uninstaller (see link above) before installing this driver to allow the channel mode change without reboot feature to work properly.

3. Added support for 24-channel mode.

4. Lynx Mixer now supports 16/24/32-channel mode and shows all controls for each mode. The channel mode currently selected is shown in About Lynx Mixer.

5. Audio/MIDI Setup can now control the output volumes, output mutes, input mutes and feed-through mutes. This allows the user to change these controls without launching Lynx Mixer (and also allows applications other than Lynx Mixer to change these controls).

6. Lynx Mixer now saves/restores all 32-channels upon exiting Lynx Mixer which allows channels 17-32 to remember the input routing through a reboot.

7. Increased the number of active devices to match the maximum number of devices available (except for 4X rates where it maxes out at 8 devices / 16 channels). Previously it was set to 8; 8 and 4.

Version 1.0 Build 53 March 13, 2012

1. Added full support for Thunderbolt expansion chassis. Implements hot-plugging and unplugging as well as sleep mode. Please note that Thunderbolt expansion chassis with the Lynx Audio Card must be connected and enabled when powering on the Macintosh otherwise the boot-loader will not allocate resources for the device and the driver will not be able to load.

2. Defaulted "Allow Clock Source Change while Active" to TRUE. Previously this control might get set to FALSE when doing a Restore Defaults, which would keep some applications from being able to change the sample rate until the streaming was stopped.

Version 1.0 Build 52 July 22, 2011

1. Set "Allow Clock Source Change while Active" to TRUE when loading driver and starting streaming.

Version 1.0 Build 51 March 2, 2011

1. Internal Test Builds.

Version 1.0 Build 50 December 8, 2010

1. Added support for 64-bit kernel.

2. Removed "Output Select" from LS-ADAT page in Lynx Mixer when running with an AES16e.

3. Added additional error messages to the kernel.log (Applications > Utilities > Console > kernel.log) if the driver fails to load.

4. This is an Intel Only Build compatible with OS X 10.6 (Snow Leopard) 32-bit and 64-bit kernel.

Version 1.0 Build 49 March 9, 2010

1. Added support for AES16e-50.

2. Added support for AES16e Firmware Build 11, which includes 64x32 mixer. Please note that driver defaults to 8 record and 8 play devices active so to use all 32-channels (16-devices) will require changing the Device Settings from within Lynx Mixer. Only the first 16-channels are routable on the Record/Play page (the top 16-channels are defaulted to LStream). Only the first 16-channels are routable on the Outputs page (the top 16-channels are defaulted to 1:1 from the play devices). This just means that it is not possible to do a record monitor (without software latency) on channels 17-32.

3. This is an Intel Only Build to make it compatible with OS X 10.6 (Snow Leopard) 32-bit kernel.

Version 1.0 Build 48i October 6, 2009

1. Fixed issue where Record Sources may be incorrectly listed as AES16 Digital Inputs instead of LynxTWO/L22 Inputs.

2. Removed MIDI Plugin.

3. This is an Intel Only Build to make it compatible with OS X 10.6 (Snow Leopard) 32-bit kernel.

Version 1.0 Build 47 November 13, 2008

1. Fixed issue where restoring scenes may cause kernel panic on LynxTWO/L22.

Version 1.0 Build 46 August 7, 2008

1. Added FWUpdate support for AES16e.

2. Fixed LynxTWORestoreSettings so it now runs on system startup.

3. Added About Box to Lynx Mixer. Please note when you open the About Box it places the text of the About Box into the clipboard so you can paste it to an email or our support forum without having to retype any information.

5. Fixed Sleep support so system can now go to Sleep and Resume from sleep without a Kernel Panic.

6. Fixed Sample Rate select control in Lynx Mixer so it always show the correct sample rate instead of occasionally being blank.

7. Renamed all devices (including MIDI) to show consistent device names.

Version 1.0 Build 45 April 17, 2008

1. No FWUpdate support for AES16e.

2. Fixed Logic 8 set 192kHz sample rate issue.

3. Included LynxRestoreSettings.

4. Saving scenes now saves all controls.

5. Fixed AES16-SRC and AES16e-SRC adapter pages.

Version 1.0 Build 44 April 11, 2008

1. LynxRestoreSettings is not included.

2. Saving a scene in Lynx Mixer will not save all of the controls. This just means that when you boot the Lynx Mixer will always start with the default settings..

4. Fixed Logic 8 set sample rate issue.

5. Updated Lynx Mixer AES16 Adapter page so status controls are color coded.

6. Fixed Lynx Mixer for PPC so font changes don't crash the program.

7. Fixed Interface to Aurora Remote so launching ARC will not Kernel Panic the computer.

Version 1.0 Build 43 April 1, 2008

1. Added support AES16e.

2. Universal Binary. Will work with either Intel or PPC Macintosh.

Version 1.01 Build 42 April 14, 2006

1. Added support for Aurora Remote and Aurora Update applications.

2. Renamed installer package to Lynx_OSX_xx.pkg.

3. Changed to ZIP file format for installer package.

4. Holding down the 'control' key while changing a main output volume now changes all 16 main output volumes together. The shift key still changes stereo pairs.

5. Holding down the 'control' key while selecting the monitor source or record source sets all the monitor sources to the right of the current control to next valid source.

6. Driver now supports both big endian and little endian firmware. This means if the Lynx PCI audio card already has Windows firmware on it, there is no need to update it to Macintosh firmware. All future firmware releases will be little endian (Windows) only. Please Note: This change allows the driver to use a Lynx PCI audio card with either Windows or Macintosh firmware. This driver will only work on a Macintosh with G5 and G4 processors, not Intel processors.

7. L2Update programs X21 and older will no longer function with this driver. If you must use an older L2Update program, first DesInstall this driver, restart the computer, run L2Update, power down then power back up and reinstall the driver.

Version 1.01 Build 41 March 6, 2006

1. Internal Test Build.

Version 1.01 Build 40 June 2, 2005

1. Fixed permissions issue for OSX 10.4 with StartupItems.

2. Fixed Recalibrate Converters button that was broken in Build 39..

3. Fixed audio erasure playback issue that was broken in Build 39. This would cause a 'stuttering' sound when multiple applications tried to playback audio from the same device (such as iTunes and Peak).

4. Fixed Restore Settings problem that may overwrite some trim controls values.

5. Fixed Restore Settings version so older settings files will no longer load.

6. Driver now only advertises to applications that the AES16 can do 32kHz to 192kHz. Previously the driver would advertise it could do 11.025 & 22.05kHz when it actually could not.

Version 1.01 Build 39 May 10, 2005

1. Changed how the Sample Clock Source selection works. Now, the control 'Preferred Clock Source' allows selection of the desired sample clock source. Once every 250 milliseconds (4 times a second) the sample clock source is evaluated by looking at the appropriate System Clock Rate (Frequency Counter next to the Preferred Clock Source selection button) to determine if the Preferred Clock Source is valid. If the clock source is valid, the driver switches the Sample Clock Source to the Preferred Clock Source. If at any time the Preferred Clock Source becomes invalid (clock cable disconnected, external gear that is feeding the clock is turned off), the driver changes the Sample Clock Source back to Internal, even if the card has a device that is actively playing or recording.

2. Removed the 'Sample Clock Reference' control as it was no longer needed because the driver automatically detects the different clock references (Word/Word256/13.5MHz/27MHz).

3. Added 'Rate Lock' control. Default is OFF. When ON, the driver will ignore all requests to change the Sample Clock Rate, including those coming from applications. The effectively causes all files not running at the currently selected clock rate to be software sample rate converted (if available) during playback/recording. When clocking to an external word clock, the Rate Lock function is effectively ON regardless of this switch setting, and the rate is locked to the same rate of the incoming word clock.

4. Fixed a problem on startup that would cause the driver to be out-of-sync with the hardware. This caused additional latency to be added to the audio stream.

5. Changed the number of transfers per interrupt from 2 to 8, which reduces the CPU load for processing interrupts.

6. Added output mixer source volume controls to Lynx Mixer Outputs page. This allows individual volume control over each source going to each output for custom mixes. Note: Holding down the shift key will change the volumes in stereo pairs.

Version 1.01 Build 38 December 22, 2004

1. The driver now recognizes Lynx L22 with serial numbers 230408XXXX and LynxTWO-A with serial numbers 200401XXXX as having the Rev A analog to digital converter chip. This corrects for a phase problem between channels 1 & 2 (and 3 & 4 on the LynxTWO-A) during recording. PLEASE NOTE: Only cards with these two specific serial number sequences would have exhibited any phase problems during recording and this driver corrects the issue.

Version 1.01 Build 37 December 9, 2004

1. Renamed 'LynxTWO Mixer' to 'Lynx Mixer'.

2. Fixed AES16-SRC Adapter Page in Lynx Mixer to correctly display SRC Enable & SRC Match Phase controls upon startup.

3. Lynx Mixer now saves the state of all the AES16 controls upon exiting and when saving a Scene.

4. Added Settings > Device Settings dialog box to Lynx Mixer to allow for configuration of the driver performance. PLEASE NOTE: The driver must not be active when making changes to the Device Settings dialog box. You must manually ensure the the transfer size set in the Lynx Mixer is less than or equal to the buffer size set in the application, otherwise audio break-up may occur. Reducing the number of active devices does not change how the driver appears inside an application, it only turns off the PCI Bus transfers for those devices - thus freeing the system to do other work.

5. Lynx Mixer now only shows the appropriate Settings menu items for the type of card in use.

Version 1.01 Build 36 June 25, 2004

1. First non-beta release of driver.

2. Added support for changing the sample clock source from within applications, such as Nuendo and Audio & MIDI Setup.

3. Put the maximum limit on number of devices at high sample rate (>96kHz) to 5 (giving 10in+10out channels).

Version 1.01 Build 35 June 9, 2004

1. Changed when the time stamp is reported to fix problem with larger record buffers and record buffer wrapping problem.

Version 1.01 Build 34 May 28, 2004

1. Changed how current position is reported to keep erase head getting too close to the playback head.

2. Added Restore Defaults to LynxTWO Mixer Application.

Version 1.01 Build 33 April 13, 2004

1. Complete rewrite of ISR and buffer handling to improve latency performance. Internal Release Only.

Version 1.01 Build 32 March 25, 2004

1. Changed how the DMA transfers are handled to improve reliability (GLIMIT to 256, SO to 256).

Version 1.01 Build 31 March 9, 2004

1. Fixed a problem that misreported the latency to CoreAudio.

2. Changed how the DMA transfers are handled to improve latency performance (GLIMIT to 32, SO to 32).

3. Changed the DMA buffer size to 16 x 256 sample-frames.

4. Fixed the LS-ADAT window to correctly display the position from the Sync In port.

5. Changed the frequency counters in the LynxTWO Mixer to show only one decimal point of accuracy in the kHz range.

6. Fixed a problem with the AES16-SRC Adapter Page that wouldn't allow enabling of the SRC Check Box.

7. Put the maximum limit on number of devices at high sample rate (>96kHz) to 2 (giving 4in+4out channels) as a temporary measure until the next rev of the driver.

Version 1.01 Build 30 January 12, 2004

1. Added support for the AES16 and AES16-SRC.

Version 1.01 Build 29 October 17, 2003

1. Put the maximum limit on number of devices at high sample rate (>96kHz) back to 4 (giving 8in+8out channels).

Version 1.01 Build 28 October 11, 2003

1. Changed the Record Source Menus to not show any check-marks.

2. Put the maximum limit on number of devices at high sample rate (>96kHz) to 5 (giving 10in+10out channels).

Version 1.01 Build 27 October 15, 2003

1. Added Record Source Lookup for Output Page in Lynx Mixer.

Version 1.01 Build 26 October 14, 2003

1. Record Sources Menu in Record/Play page is now adapter specific.

Version 1.01 Build 25 October 11, 2003

1. Fixed a problem that caused audio breakup at higher sample rates (>96kHz).

Version 1.01 Build 24 October 8, 2003

1. Increased the "tolerance" for overruns from 0 to 8.

Version 1.01 Build 23 October 4, 2003

1. Fixed a problem that caused the device to not play anything after using a high sampling rate (>96kHz).

2. Put the maximum limit on number of devices at high sample rate (>96kHz) to 4 (giving 8in+8out channels).

3. Improved overrun detection and recovery.

Version 1.01 Build 22 October 2, 2003

1. Changed the AudioEngine to only prepare and use 6 devices if sampling rate is above 96kHz.

2. Create just one multi-channel device to work around sample rate setting issue with Nuendo 2 & Cubase SX.

Version 1.01 Build 20 September 15, 2003

1. Using the new HalMIDIDevice to fix timecode conversion.

2. Minor improvements in the mixer - Depth popup clipping fixed.

3. Set the dBScale bitmap transparency.

Version 1.01 Build 19 September 11, 2003

1. Under some circumstances the HAL MIDI device was not getting the start call.

2. Some changes to the MIDI Send procedure.

3. Added the MTC Source menu to the mixer.

Version 1.01 Build 18 September 9, 2003

1. The mixer windows are now staggered on the main screen so that you can immediately see multiple windows if there are multiple LynxTWOs in the machine.

2. The MIDI driver is now included with the installer.

Version 1.01 Build 17 August 28, 2003

1. Removed reading of Digital Input status on Adapter page to prevent Mixer from locking up certain Macs.

Version 1.01 Build 16 August 11, 2003

1. Added setting up the sample offset parameter (to help with noise).

2. Added Settings menu functionality.

Version 1.01 Build 15 July 7, 2003

1. Added ability to Load/Save Scenes.

2. Added code to save mixer settings on application close (that's used at bootup).

3. Changed the name of Inputs tab to Record/Play.

4. Added the dB scale display to Outputs and Record/Play page.

5. Changed the name (and functionality) of LS-AES tabs to indicate the LStream ports.

6. Centering window on startup.

Version 1.01 Build 14 July 1, 2003

1. Inputs page now active.

2. Outputs page now active.

Version 1.01 Build 13 June 27, 2003

1. Added code for supporting Mixer controls.

2. Added code to support Kext Interface versioning.

3. Improved time-stamping by taking one on entry to the ISR.

4. Added code to specify sample latency (safety offset).

5. Added LynxTWO Mixer with Adapter Page controls functional. LynxTWO Mixer is installed in the Applications Folder.
Please Note: If you choose an Sample Clock Source other than Internal and then try to play/record something, you must manually insure that the Sample Clock Source has a valid clock running or CoreAudio will get corrupted and only a reboot will allow you to use the audio engine again.

Version 1.01 Build 12 June 18, 2003

1. Changed when the interrupt is enabled to prevent lockups on boot.

Version 1.01 Build 11 June 13, 2003

1. Using optimized float/int conversion routines.

2. Using the last input device for interrupt control/position report.

3. Added the user-mode interface so as to make it work with L2Update.

Version 1.01 Build 10 May 22, 2003

1. Now reporting position based on the "current" DMA buffer block only.

2. Using fewer interrupts.

3. Using the primary interrupt handler for all processing.

4. Added "names" (Play N, Record N) for Streams.

5. Over/under run recovery improvements.

Version 1.0 Build 09 May 16, 2003

1. Driver now has interrupts on only for the last device that is active. This reduces the number of interrupts on the PCI bus.

Version 1.0 Build 08 May 12, 2003

1. Added buffer overrun detection/recovery.

2. Changed the DMA buffer size to 8 x 256 sample-frames.

Version 1.0 Build 07 May 7, 2003

1. First public beta release of driver.

.

-end-

Please read this entire document before proceeding with the installation of this driver.

Installation Notes

1. If you installed a previous version of this driver, please uninstall it first. To uninstall the driver, please run the Uninstall Lynx Driver application included with the driver. Once you have uninstalled the previous driver, please be sure to restart your computer before installing the newer version.

2. Double-click on the ZIP file to decompress the OS X driver package.

3. Double-click on the Lynx_OSX.pkg file to start the driver installation process.

4. Simply follow the instructions presented. You will be prompted for your administrator password and you must enter the password to install the driver.

5. Restart the computer.

6. When the computer restarts, the driver will be loaded automatically.

Revision History

Version 1.0 Build 58 August 27, 2015

1. Added support for DMAV2PLUS for AES16e/LT-TB/E44/E22.
DMAV2PLUS supports the following features:
- Smaller transfer sizes to reduce latency to under 1ms round-trip (96kHz, 32 sample buffer)
DMAV2PLUS is supported with the following firmware:
AES16e: 14.0
LT-TB: 6.0
E44/E22: 2.0

2. Added new controls in Lynx Mixer to support DMAV2PLUS. Settings > Advanced > Hardware Buffer Size. This settings should be left at 'Auto' unless you are working with Lynx Technical Support on a specific issue. Changing this control sets the amount of audio buffered in the hardware. The smaller the number the faster the CPU must respond to interrupts before audio breaks up.

3. Includes Hilo Remote Version 1.0.11.

Version 1.0 Build 57A April 9, 2015

1. Added support for 32-bit Kernel for OS X 10.6 and 10.7.

2. Fixed issue that caused Build 57 driver to not load properly on OS X 10.8.

3. Included Hilo Remote 1.0.0.8.

Version 1.0 Build 57 December 9, 2014

1. Added full support for E44 and E22 PCI Express cards.

2. Corrected issue with Hilo-TB where the delay compensation was off by 1 sample for input and output.

3. Included Hilo Remote 1.0.0.6.

4. Added support for 2, 4 and 8-channel modes (in addition to 16, 24 and 32) for AES16e and LT-TB.

Version 1.0 Build 56 February 7, 2014

1. Added full support for LT-TB Thunderbolt adapter for Aurora and Hilo converters.

2. Added new Lynx Mixer application which gives the following new features:

* Tabs for each adapter installed instead of a separate floating window.

* Adapter; Record and Play pane may be displayed

* Rate Lock now available in OS X, which allows the sample rate to be fixed.

* Mixer Lock now available in OS X, which keeps the user for accidentally changing any control.

* Same look and feel for both Windows and OS X.

* Saves scenes in a standard XML file which are no longer version or OS specific.

* Added "Disable CPU Power Management" in driver which will turn off CPU power management whenever the driver is streaming. This may cause additional power draw for your computer while streaming audio, which may result in shorter on-battery time and higher heat generated. You may disable this new feature by un-checking the menu item while streaming is not active. If glitches in audio playback occur at higher sample rates or higher numbers of channels, we recommend leaving this item checked.

* For the AES16e+Aurora combo, new Aurora menu items appear within the Settings menu. This replaces Aurora Remote Control which is no longer needed for the AES16e+Aurora combo.

* New method for controlling the monitor sources.

* Inputs and Outputs change name based on what is connected. For the AES16e by itself, I/O will be labeled as Digital In and Digital Out. For the AES16e+Aurora combo, I/O will be labeled as Analog In and Analog Out.

* LS-ADAT fully supported with "ADAT Clock Source" selection in Settings Menu and LStream clock lockout for when the ADAT Clock Source is set to Slave.

* For the Aurora-TB and AES16e+Aurora combo, the Adapter Settings dialog now flashes the front panel of the Aurora when each device is selected. This allows easy identification when selecting the order of the adapters.

3. When driver is operating in 16-channel mode, outputs 17-32 (AES16e: ADAT or AES50 / Aurora 16-TB: AES/EBU) are mirrored from the first 16-channels.

4. When setting up an aggregate device in Audio/MIDI Setup, it is important to: Clock all devices from the same source; Set the Sync Source in Lynx Mixer to External for all "slave" devices (please note setting the clock source in Audio/MIDI setup has been removed); Turn "Drift/Resample" off for all "slave" devices in Audio/MIDI setup.

Version 1.0 Build 55 November 2, 2013

1. Added full support for OS X 10.9 (Mavericks). Installer and driver are now digitally signed (which is required by OS X 10.9). Signed driver is installed in /Library/Extensions and unsigned driver is installed in /System/Library/Extensions (for OS X 10.6; 10.7 and 10.8) as required by Apple.

2. Channel mode and card order (for a multi-card system) can now be set from within Lynx Mixer. Lynx Mixer > Settings > Adapter Settings. Please note that you must restart the computer for these settings to take effect. You must have firmware version 12.11 on your AES16e for this to work properly.

3. Remove ability to control output volumes from Audio/MIDI Setup. If you need this capability, please use Build 54.

4. Changed where Lynx Mixer stores the last used scene for restart. It is now stored in the Home Folder/Library/Preferences.

5. Added complete support for Thunderbolt hot plug and unplug. Please note that for some Thunderbolt chassis, OS X 10.8.5 is required for hot plug to work properly.

6. The AES16e-50 card defaults now has the AES50 port routed for all of the inputs.

Version 1.0 Build 54 August 1, 2012

1. Added full support for OS X 10.8 (Mountain Lion). Installer is now digitally signed (which is required by OS X 10.8).

2. Installer can now change from one channel mode to another (16/24/32) without rebooting the computer. Please note that you may need to uninstall the previous driver using the Lynx OS X Driver Uninstaller (see link above) before installing this driver to allow the channel mode change without reboot feature to work properly.

3. Added support for 24-channel mode.

4. Lynx Mixer now supports 16/24/32-channel mode and shows all controls for each mode. The channel mode currently selected is shown in About Lynx Mixer.

5. Audio/MIDI Setup can now control the output volumes, output mutes, input mutes and feed-through mutes. This allows the user to change these controls without launching Lynx Mixer (and also allows applications other than Lynx Mixer to change these controls).

6. Lynx Mixer now saves/restores all 32-channels upon exiting Lynx Mixer which allows channels 17-32 to remember the input routing through a reboot.

7. Increased the number of active devices to match the maximum number of devices available (except for 4X rates where it maxes out at 8 devices / 16 channels). Previously it was set to 8; 8 and 4.

Version 1.0 Build 53 March 13, 2012

1. Added full support for Thunderbolt expansion chassis. Implements hot-plugging and unplugging as well as sleep mode. Please note that Thunderbolt expansion chassis with the Lynx Audio Card must be connected and enabled when powering on the Macintosh otherwise the boot-loader will not allocate resources for the device and the driver will not be able to load.

2. Defaulted "Allow Clock Source Change while Active" to TRUE. Previously this control might get set to FALSE when doing a Restore Defaults, which would keep some applications from being able to change the sample rate until the streaming was stopped.

Version 1.0 Build 52 July 22, 2011

1. Set "Allow Clock Source Change while Active" to TRUE when loading driver and starting streaming.

Version 1.0 Build 51 March 2, 2011

1. Internal Test Builds.

Version 1.0 Build 50 December 8, 2010

1. Added support for 64-bit kernel.

2. Removed "Output Select" from LS-ADAT page in Lynx Mixer when running with an AES16e.

3. Added additional error messages to the kernel.log (Applications > Utilities > Console > kernel.log) if the driver fails to load.

4. This is an Intel Only Build compatible with OS X 10.6 (Snow Leopard) 32-bit and 64-bit kernel.

Version 1.0 Build 49 March 9, 2010

1. Added support for AES16e-50.

2. Added support for AES16e Firmware Build 11, which includes 64x32 mixer. Please note that driver defaults to 8 record and 8 play devices active so to use all 32-channels (16-devices) will require changing the Device Settings from within Lynx Mixer. Only the first 16-channels are routable on the Record/Play page (the top 16-channels are defaulted to LStream). Only the first 16-channels are routable on the Outputs page (the top 16-channels are defaulted to 1:1 from the play devices). This just means that it is not possible to do a record monitor (without software latency) on channels 17-32.

3. This is an Intel Only Build to make it compatible with OS X 10.6 (Snow Leopard) 32-bit kernel.

Version 1.0 Build 48i October 6, 2009

1. Fixed issue where Record Sources may be incorrectly listed as AES16 Digital Inputs instead of LynxTWO/L22 Inputs.

2. Removed MIDI Plugin.

3. This is an Intel Only Build to make it compatible with OS X 10.6 (Snow Leopard) 32-bit kernel.

Version 1.0 Build 47 November 13, 2008

1. Fixed issue where restoring scenes may cause kernel panic on LynxTWO/L22.

Version 1.0 Build 46 August 7, 2008

1. Added FWUpdate support for AES16e.

2. Fixed LynxTWORestoreSettings so it now runs on system startup.

3. Added About Box to Lynx Mixer. Please note when you open the About Box it places the text of the About Box into the clipboard so you can paste it to an email or our support forum without having to retype any information.

5. Fixed Sleep support so system can now go to Sleep and Resume from sleep without a Kernel Panic.

6. Fixed Sample Rate select control in Lynx Mixer so it always show the correct sample rate instead of occasionally being blank.

7. Renamed all devices (including MIDI) to show consistent device names.

Version 1.0 Build 45 April 17, 2008

1. No FWUpdate support for AES16e.

2. Fixed Logic 8 set 192kHz sample rate issue.

3. Included LynxRestoreSettings.

4. Saving scenes now saves all controls.

5. Fixed AES16-SRC and AES16e-SRC adapter pages.

Version 1.0 Build 44 April 11, 2008

1. LynxRestoreSettings is not included.

2. Saving a scene in Lynx Mixer will not save all of the controls. This just means that when you boot the Lynx Mixer will always start with the default settings..

4. Fixed Logic 8 set sample rate issue.

5. Updated Lynx Mixer AES16 Adapter page so status controls are color coded.

6. Fixed Lynx Mixer for PPC so font changes don't crash the program.

7. Fixed Interface to Aurora Remote so launching ARC will not Kernel Panic the computer.

Version 1.0 Build 43 April 1, 2008

1. Added support AES16e.

2. Universal Binary. Will work with either Intel or PPC Macintosh.

Version 1.01 Build 42 April 14, 2006

1. Added support for Aurora Remote and Aurora Update applications.

2. Renamed installer package to Lynx_OSX_xx.pkg.

3. Changed to ZIP file format for installer package.

4. Holding down the 'control' key while changing a main output volume now changes all 16 main output volumes together. The shift key still changes stereo pairs.

5. Holding down the 'control' key while selecting the monitor source or record source sets all the monitor sources to the right of the current control to next valid source.

6. Driver now supports both big endian and little endian firmware. This means if the Lynx PCI audio card already has Windows firmware on it, there is no need to update it to Macintosh firmware. All future firmware releases will be little endian (Windows) only. Please Note: This change allows the driver to use a Lynx PCI audio card with either Windows or Macintosh firmware. This driver will only work on a Macintosh with G5 and G4 processors, not Intel processors.

7. L2Update programs X21 and older will no longer function with this driver. If you must use an older L2Update program, first DesInstall this driver, restart the computer, run L2Update, power down then power back up and reinstall the driver.

Version 1.01 Build 41 March 6, 2006

1. Internal Test Build.

Version 1.01 Build 40 June 2, 2005

1. Fixed permissions issue for OSX 10.4 with StartupItems.

2. Fixed Recalibrate Converters button that was broken in Build 39..

3. Fixed audio erasure playback issue that was broken in Build 39. This would cause a 'stuttering' sound when multiple applications tried to playback audio from the same device (such as iTunes and Peak).

4. Fixed Restore Settings problem that may overwrite some trim controls values.

5. Fixed Restore Settings version so older settings files will no longer load.

6. Driver now only advertises to applications that the AES16 can do 32kHz to 192kHz. Previously the driver would advertise it could do 11.025 & 22.05kHz when it actually could not.

Version 1.01 Build 39 May 10, 2005

1. Changed how the Sample Clock Source selection works. Now, the control 'Preferred Clock Source' allows selection of the desired sample clock source. Once every 250 milliseconds (4 times a second) the sample clock source is evaluated by looking at the appropriate System Clock Rate (Frequency Counter next to the Preferred Clock Source selection button) to determine if the Preferred Clock Source is valid. If the clock source is valid, the driver switches the Sample Clock Source to the Preferred Clock Source. If at any time the Preferred Clock Source becomes invalid (clock cable disconnected, external gear that is feeding the clock is turned off), the driver changes the Sample Clock Source back to Internal, even if the card has a device that is actively playing or recording.

2. Removed the 'Sample Clock Reference' control as it was no longer needed because the driver automatically detects the different clock references (Word/Word256/13.5MHz/27MHz).

3. Added 'Rate Lock' control. Default is OFF. When ON, the driver will ignore all requests to change the Sample Clock Rate, including those coming from applications. The effectively causes all files not running at the currently selected clock rate to be software sample rate converted (if available) during playback/recording. When clocking to an external word clock, the Rate Lock function is effectively ON regardless of this switch setting, and the rate is locked to the same rate of the incoming word clock.

4. Fixed a problem on startup that would cause the driver to be out-of-sync with the hardware. This caused additional latency to be added to the audio stream.

5. Changed the number of transfers per interrupt from 2 to 8, which reduces the CPU load for processing interrupts.

6. Added output mixer source volume controls to Lynx Mixer Outputs page. This allows individual volume control over each source going to each output for custom mixes. Note: Holding down the shift key will change the volumes in stereo pairs.

Version 1.01 Build 38 December 22, 2004

1. The driver now recognizes Lynx L22 with serial numbers 230408XXXX and LynxTWO-A with serial numbers 200401XXXX as having the Rev A analog to digital converter chip. This corrects for a phase problem between channels 1 & 2 (and 3 & 4 on the LynxTWO-A) during recording. PLEASE NOTE: Only cards with these two specific serial number sequences would have exhibited any phase problems during recording and this driver corrects the issue.

Version 1.01 Build 37 December 9, 2004

1. Renamed 'LynxTWO Mixer' to 'Lynx Mixer'.

2. Fixed AES16-SRC Adapter Page in Lynx Mixer to correctly display SRC Enable & SRC Match Phase controls upon startup.

3. Lynx Mixer now saves the state of all the AES16 controls upon exiting and when saving a Scene.

4. Added Settings > Device Settings dialog box to Lynx Mixer to allow for configuration of the driver performance. PLEASE NOTE: The driver must not be active when making changes to the Device Settings dialog box. You must manually ensure the the transfer size set in the Lynx Mixer is less than or equal to the buffer size set in the application, otherwise audio break-up may occur. Reducing the number of active devices does not change how the driver appears inside an application, it only turns off the PCI Bus transfers for those devices - thus freeing the system to do other work.

5. Lynx Mixer now only shows the appropriate Settings menu items for the type of card in use.

Version 1.01 Build 36 June 25, 2004

1. First non-beta release of driver.

2. Added support for changing the sample clock source from within applications, such as Nuendo and Audio & MIDI Setup.

3. Put the maximum limit on number of devices at high sample rate (>96kHz) to 5 (giving 10in+10out channels).

Version 1.01 Build 35 June 9, 2004

1. Changed when the time stamp is reported to fix problem with larger record buffers and record buffer wrapping problem.

Version 1.01 Build 34 May 28, 2004

1. Changed how current position is reported to keep erase head getting too close to the playback head.

2. Added Restore Defaults to LynxTWO Mixer Application.

Version 1.01 Build 33 April 13, 2004

1. Complete rewrite of ISR and buffer handling to improve latency performance. Internal Release Only.

Version 1.01 Build 32 March 25, 2004

1. Changed how the DMA transfers are handled to improve reliability (GLIMIT to 256, SO to 256).

Version 1.01 Build 31 March 9, 2004

1. Fixed a problem that misreported the latency to CoreAudio.

2. Changed how the DMA transfers are handled to improve latency performance (GLIMIT to 32, SO to 32).

3. Changed the DMA buffer size to 16 x 256 sample-frames.

4. Fixed the LS-ADAT window to correctly display the position from the Sync In port.

5. Changed the frequency counters in the LynxTWO Mixer to show only one decimal point of accuracy in the kHz range.

6. Fixed a problem with the AES16-SRC Adapter Page that wouldn't allow enabling of the SRC Check Box.

7. Put the maximum limit on number of devices at high sample rate (>96kHz) to 2 (giving 4in+4out channels) as a temporary measure until the next rev of the driver.

Version 1.01 Build 30 January 12, 2004

1. Added support for the AES16 and AES16-SRC.

Version 1.01 Build 29 October 17, 2003

1. Put the maximum limit on number of devices at high sample rate (>96kHz) back to 4 (giving 8in+8out channels).

Version 1.01 Build 28 October 11, 2003

1. Changed the Record Source Menus to not show any check-marks.

2. Put the maximum limit on number of devices at high sample rate (>96kHz) to 5 (giving 10in+10out channels).

Version 1.01 Build 27 October 15, 2003

1. Added Record Source Lookup for Output Page in Lynx Mixer.

Version 1.01 Build 26 October 14, 2003

1. Record Sources Menu in Record/Play page is now adapter specific.

Version 1.01 Build 25 October 11, 2003

1. Fixed a problem that caused audio breakup at higher sample rates (>96kHz).

Version 1.01 Build 24 October 8, 2003

1. Increased the "tolerance" for overruns from 0 to 8.

Version 1.01 Build 23 October 4, 2003

1. Fixed a problem that caused the device to not play anything after using a high sampling rate (>96kHz).

2. Put the maximum limit on number of devices at high sample rate (>96kHz) to 4 (giving 8in+8out channels).

3. Improved overrun detection and recovery.

Version 1.01 Build 22 October 2, 2003

1. Changed the AudioEngine to only prepare and use 6 devices if sampling rate is above 96kHz.

2. Create just one multi-channel device to work around sample rate setting issue with Nuendo 2 & Cubase SX.

Version 1.01 Build 20 September 15, 2003

1. Using the new HalMIDIDevice to fix timecode conversion.

2. Minor improvements in the mixer - Depth popup clipping fixed.

3. Set the dBScale bitmap transparency.

Version 1.01 Build 19 September 11, 2003

1. Under some circumstances the HAL MIDI device was not getting the start call.

2. Some changes to the MIDI Send procedure.

3. Added the MTC Source menu to the mixer.

Version 1.01 Build 18 September 9, 2003

1. The mixer windows are now staggered on the main screen so that you can immediately see multiple windows if there are multiple LynxTWOs in the machine.

2. The MIDI driver is now included with the installer.

Version 1.01 Build 17 August 28, 2003

1. Removed reading of Digital Input status on Adapter page to prevent Mixer from locking up certain Macs.

Version 1.01 Build 16 August 11, 2003

1. Added setting up the sample offset parameter (to help with noise).

2. Added Settings menu functionality.

Version 1.01 Build 15 July 7, 2003

1. Added ability to Load/Save Scenes.

2. Added code to save mixer settings on application close (that's used at bootup).

3. Changed the name of Inputs tab to Record/Play.

4. Added the dB scale display to Outputs and Record/Play page.

5. Changed the name (and functionality) of LS-AES tabs to indicate the LStream ports.

6. Centering window on startup.

Version 1.01 Build 14 July 1, 2003

1. Inputs page now active.

2. Outputs page now active.

Version 1.01 Build 13 June 27, 2003

1. Added code for supporting Mixer controls.

2. Added code to support Kext Interface versioning.

3. Improved time-stamping by taking one on entry to the ISR.

4. Added code to specify sample latency (safety offset).

5. Added LynxTWO Mixer with Adapter Page controls functional. LynxTWO Mixer is installed in the Applications Folder.
Please Note: If you choose an Sample Clock Source other than Internal and then try to play/record something, you must manually insure that the Sample Clock Source has a valid clock running or CoreAudio will get corrupted and only a reboot will allow you to use the audio engine again.

Version 1.01 Build 12 June 18, 2003

1. Changed when the interrupt is enabled to prevent lockups on boot.

Version 1.01 Build 11 June 13, 2003

1. Using optimized float/int conversion routines.

2. Using the last input device for interrupt control/position report.

3. Added the user-mode interface so as to make it work with L2Update.

Version 1.01 Build 10 May 22, 2003

1. Now reporting position based on the "current" DMA buffer block only.

2. Using fewer interrupts.

3. Using the primary interrupt handler for all processing.

4. Added "names" (Play N, Record N) for Streams.

5. Over/under run recovery improvements.

Version 1.0 Build 09 May 16, 2003

1. Driver now has interrupts on only for the last device that is active. This reduces the number of interrupts on the PCI bus.

Version 1.0 Build 08 May 12, 2003

1. Added buffer overrun detection/recovery.

2. Changed the DMA buffer size to 8 x 256 sample-frames.

Version 1.0 Build 07 May 7, 2003

1. First public beta release of driver.

.

-end-

Please read this entire document before proceeding with the installation of this driver.

Installation Notes

1. If you installed a previous version of this driver, please uninstall it first. To uninstall the driver, please run the Uninstall Lynx Driver application included with the driver. Once you have uninstalled the previous driver, please be sure to restart your computer before installing the newer version.

2. Double-click on the ZIP file to decompress the OS X driver package.

3. Double-click on the Lynx_OSX.pkg file to start the driver installation process.

4. Simply follow the instructions presented. You will be prompted for your administrator password and you must enter the password to install the driver.

5. Restart the computer.

6. When the computer restarts, the driver will be loaded automatically.

Revision History

Version 1.0 Build 58 August 27, 2015

1. Added support for DMAV2PLUS for AES16e/LT-TB/E44/E22.
DMAV2PLUS supports the following features:
- Smaller transfer sizes to reduce latency to under 1ms round-trip (96kHz, 32 sample buffer)
DMAV2PLUS is supported with the following firmware:
AES16e: 14.0
LT-TB: 6.0
E44/E22: 2.0

2. Added new controls in Lynx Mixer to support DMAV2PLUS. Settings > Advanced > Hardware Buffer Size. This settings should be left at 'Auto' unless you are working with Lynx Technical Support on a specific issue. Changing this control sets the amount of audio buffered in the hardware. The smaller the number the faster the CPU must respond to interrupts before audio breaks up.

3. Includes Hilo Remote Version 1.0.11.

Version 1.0 Build 57A April 9, 2015

1. Added support for 32-bit Kernel for OS X 10.6 and 10.7.

2. Fixed issue that caused Build 57 driver to not load properly on OS X 10.8.

3. Included Hilo Remote 1.0.0.8.

Version 1.0 Build 57 December 9, 2014

1. Added full support for E44 and E22 PCI Express cards.

2. Corrected issue with Hilo-TB where the delay compensation was off by 1 sample for input and output.

3. Included Hilo Remote 1.0.0.6.

4. Added support for 2, 4 and 8-channel modes (in addition to 16, 24 and 32) for AES16e and LT-TB.

Version 1.0 Build 56 February 7, 2014

1. Added full support for LT-TB Thunderbolt adapter for Aurora and Hilo converters.

2. Added new Lynx Mixer application which gives the following new features:

* Tabs for each adapter installed instead of a separate floating window.

* Adapter; Record and Play pane may be displayed

* Rate Lock now available in OS X, which allows the sample rate to be fixed.

* Mixer Lock now available in OS X, which keeps the user for accidentally changing any control.

* Same look and feel for both Windows and OS X.

* Saves scenes in a standard XML file which are no longer version or OS specific.

* Added "Disable CPU Power Management" in driver which will turn off CPU power management whenever the driver is streaming. This may cause additional power draw for your computer while streaming audio, which may result in shorter on-battery time and higher heat generated. You may disable this new feature by un-checking the menu item while streaming is not active. If glitches in audio playback occur at higher sample rates or higher numbers of channels, we recommend leaving this item checked.

* For the AES16e+Aurora combo, new Aurora menu items appear within the Settings menu. This replaces Aurora Remote Control which is no longer needed for the AES16e+Aurora combo.

* New method for controlling the monitor sources.

* Inputs and Outputs change name based on what is connected. For the AES16e by itself, I/O will be labeled as Digital In and Digital Out. For the AES16e+Aurora combo, I/O will be labeled as Analog In and Analog Out.

* LS-ADAT fully supported with "ADAT Clock Source" selection in Settings Menu and LStream clock lockout for when the ADAT Clock Source is set to Slave.

* For the Aurora-TB and AES16e+Aurora combo, the Adapter Settings dialog now flashes the front panel of the Aurora when each device is selected. This allows easy identification when selecting the order of the adapters.

3. When driver is operating in 16-channel mode, outputs 17-32 (AES16e: ADAT or AES50 / Aurora 16-TB: AES/EBU) are mirrored from the first 16-channels.

4. When setting up an aggregate device in Audio/MIDI Setup, it is important to: Clock all devices from the same source; Set the Sync Source in Lynx Mixer to External for all "slave" devices (please note setting the clock source in Audio/MIDI setup has been removed); Turn "Drift/Resample" off for all "slave" devices in Audio/MIDI setup.

Version 1.0 Build 55 November 2, 2013

1. Added full support for OS X 10.9 (Mavericks). Installer and driver are now digitally signed (which is required by OS X 10.9). Signed driver is installed in /Library/Extensions and unsigned driver is installed in /System/Library/Extensions (for OS X 10.6; 10.7 and 10.8) as required by Apple.

2. Channel mode and card order (for a multi-card system) can now be set from within Lynx Mixer. Lynx Mixer > Settings > Adapter Settings. Please note that you must restart the computer for these settings to take effect. You must have firmware version 12.11 on your AES16e for this to work properly.

3. Remove ability to control output volumes from Audio/MIDI Setup. If you need this capability, please use Build 54.

4. Changed where Lynx Mixer stores the last used scene for restart. It is now stored in the Home Folder/Library/Preferences.

5. Added complete support for Thunderbolt hot plug and unplug. Please note that for some Thunderbolt chassis, OS X 10.8.5 is required for hot plug to work properly.

6. The AES16e-50 card defaults now has the AES50 port routed for all of the inputs.

Version 1.0 Build 54 August 1, 2012

1. Added full support for OS X 10.8 (Mountain Lion). Installer is now digitally signed (which is required by OS X 10.8).

2. Installer can now change from one channel mode to another (16/24/32) without rebooting the computer. Please note that you may need to uninstall the previous driver using the Lynx OS X Driver Uninstaller (see link above) before installing this driver to allow the channel mode change without reboot feature to work properly.

3. Added support for 24-channel mode.

4. Lynx Mixer now supports 16/24/32-channel mode and shows all controls for each mode. The channel mode currently selected is shown in About Lynx Mixer.

5. Audio/MIDI Setup can now control the output volumes, output mutes, input mutes and feed-through mutes. This allows the user to change these controls without launching Lynx Mixer (and also allows applications other than Lynx Mixer to change these controls).

6. Lynx Mixer now saves/restores all 32-channels upon exiting Lynx Mixer which allows channels 17-32 to remember the input routing through a reboot.

7. Increased the number of active devices to match the maximum number of devices available (except for 4X rates where it maxes out at 8 devices / 16 channels). Previously it was set to 8; 8 and 4.

Version 1.0 Build 53 March 13, 2012

1. Added full support for Thunderbolt expansion chassis. Implements hot-plugging and unplugging as well as sleep mode. Please note that Thunderbolt expansion chassis with the Lynx Audio Card must be connected and enabled when powering on the Macintosh otherwise the boot-loader will not allocate resources for the device and the driver will not be able to load.

2. Defaulted "Allow Clock Source Change while Active" to TRUE. Previously this control might get set to FALSE when doing a Restore Defaults, which would keep some applications from being able to change the sample rate until the streaming was stopped.

Version 1.0 Build 52 July 22, 2011

1. Set "Allow Clock Source Change while Active" to TRUE when loading driver and starting streaming.

Version 1.0 Build 51 March 2, 2011

1. Internal Test Builds.

Version 1.0 Build 50 December 8, 2010

1. Added support for 64-bit kernel.

2. Removed "Output Select" from LS-ADAT page in Lynx Mixer when running with an AES16e.

3. Added additional error messages to the kernel.log (Applications > Utilities > Console > kernel.log) if the driver fails to load.

4. This is an Intel Only Build compatible with OS X 10.6 (Snow Leopard) 32-bit and 64-bit kernel.

Version 1.0 Build 49 March 9, 2010

1. Added support for AES16e-50.

2. Added support for AES16e Firmware Build 11, which includes 64x32 mixer. Please note that driver defaults to 8 record and 8 play devices active so to use all 32-channels (16-devices) will require changing the Device Settings from within Lynx Mixer. Only the first 16-channels are routable on the Record/Play page (the top 16-channels are defaulted to LStream). Only the first 16-channels are routable on the Outputs page (the top 16-channels are defaulted to 1:1 from the play devices). This just means that it is not possible to do a record monitor (without software latency) on channels 17-32.

3. This is an Intel Only Build to make it compatible with OS X 10.6 (Snow Leopard) 32-bit kernel.

Version 1.0 Build 48i October 6, 2009

1. Fixed issue where Record Sources may be incorrectly listed as AES16 Digital Inputs instead of LynxTWO/L22 Inputs.

2. Removed MIDI Plugin.

3. This is an Intel Only Build to make it compatible with OS X 10.6 (Snow Leopard) 32-bit kernel.

Version 1.0 Build 47 November 13, 2008

1. Fixed issue where restoring scenes may cause kernel panic on LynxTWO/L22.

Version 1.0 Build 46 August 7, 2008

1. Added FWUpdate support for AES16e.

2. Fixed LynxTWORestoreSettings so it now runs on system startup.

3. Added About Box to Lynx Mixer. Please note when you open the About Box it places the text of the About Box into the clipboard so you can paste it to an email or our support forum without having to retype any information.

5. Fixed Sleep support so system can now go to Sleep and Resume from sleep without a Kernel Panic.

6. Fixed Sample Rate select control in Lynx Mixer so it always show the correct sample rate instead of occasionally being blank.

7. Renamed all devices (including MIDI) to show consistent device names.

Version 1.0 Build 45 April 17, 2008

1. No FWUpdate support for AES16e.

2. Fixed Logic 8 set 192kHz sample rate issue.

3. Included LynxRestoreSettings.

4. Saving scenes now saves all controls.

5. Fixed AES16-SRC and AES16e-SRC adapter pages.

Version 1.0 Build 44 April 11, 2008

1. LynxRestoreSettings is not included.

2. Saving a scene in Lynx Mixer will not save all of the controls. This just means that when you boot the Lynx Mixer will always start with the default settings..

4. Fixed Logic 8 set sample rate issue.

5. Updated Lynx Mixer AES16 Adapter page so status controls are color coded.

6. Fixed Lynx Mixer for PPC so font changes don't crash the program.

7. Fixed Interface to Aurora Remote so launching ARC will not Kernel Panic the computer.

Version 1.0 Build 43 April 1, 2008

1. Added support AES16e.

2. Universal Binary. Will work with either Intel or PPC Macintosh.

Version 1.01 Build 42 April 14, 2006

1. Added support for Aurora Remote and Aurora Update applications.

2. Renamed installer package to Lynx_OSX_xx.pkg.

3. Changed to ZIP file format for installer package.

4. Holding down the 'control' key while changing a main output volume now changes all 16 main output volumes together. The shift key still changes stereo pairs.

5. Holding down the 'control' key while selecting the monitor source or record source sets all the monitor sources to the right of the current control to next valid source.

6. Driver now supports both big endian and little endian firmware. This means if the Lynx PCI audio card already has Windows firmware on it, there is no need to update it to Macintosh firmware. All future firmware releases will be little endian (Windows) only. Please Note: This change allows the driver to use a Lynx PCI audio card with either Windows or Macintosh firmware. This driver will only work on a Macintosh with G5 and G4 processors, not Intel processors.

7. L2Update programs X21 and older will no longer function with this driver. If you must use an older L2Update program, first DesInstall this driver, restart the computer, run L2Update, power down then power back up and reinstall the driver.

Version 1.01 Build 41 March 6, 2006

1. Internal Test Build.

Version 1.01 Build 40 June 2, 2005

1. Fixed permissions issue for OSX 10.4 with StartupItems.

2. Fixed Recalibrate Converters button that was broken in Build 39..

3. Fixed audio erasure playback issue that was broken in Build 39. This would cause a 'stuttering' sound when multiple applications tried to playback audio from the same device (such as iTunes and Peak).

4. Fixed Restore Settings problem that may overwrite some trim controls values.

5. Fixed Restore Settings version so older settings files will no longer load.

6. Driver now only advertises to applications that the AES16 can do 32kHz to 192kHz. Previously the driver would advertise it could do 11.025 & 22.05kHz when it actually could not.

Version 1.01 Build 39 May 10, 2005

1. Changed how the Sample Clock Source selection works. Now, the control 'Preferred Clock Source' allows selection of the desired sample clock source. Once every 250 milliseconds (4 times a second) the sample clock source is evaluated by looking at the appropriate System Clock Rate (Frequency Counter next to the Preferred Clock Source selection button) to determine if the Preferred Clock Source is valid. If the clock source is valid, the driver switches the Sample Clock Source to the Preferred Clock Source. If at any time the Preferred Clock Source becomes invalid (clock cable disconnected, external gear that is feeding the clock is turned off), the driver changes the Sample Clock Source back to Internal, even if the card has a device that is actively playing or recording.

2. Removed the 'Sample Clock Reference' control as it was no longer needed because the driver automatically detects the different clock references (Word/Word256/13.5MHz/27MHz).

3. Added 'Rate Lock' control. Default is OFF. When ON, the driver will ignore all requests to change the Sample Clock Rate, including those coming from applications. The effectively causes all files not running at the currently selected clock rate to be software sample rate converted (if available) during playback/recording. When clocking to an external word clock, the Rate Lock function is effectively ON regardless of this switch setting, and the rate is locked to the same rate of the incoming word clock.

4. Fixed a problem on startup that would cause the driver to be out-of-sync with the hardware. This caused additional latency to be added to the audio stream.

5. Changed the number of transfers per interrupt from 2 to 8, which reduces the CPU load for processing interrupts.

6. Added output mixer source volume controls to Lynx Mixer Outputs page. This allows individual volume control over each source going to each output for custom mixes. Note: Holding down the shift key will change the volumes in stereo pairs.

Version 1.01 Build 38 December 22, 2004

1. The driver now recognizes Lynx L22 with serial numbers 230408XXXX and LynxTWO-A with serial numbers 200401XXXX as having the Rev A analog to digital converter chip. This corrects for a phase problem between channels 1 & 2 (and 3 & 4 on the LynxTWO-A) during recording. PLEASE NOTE: Only cards with these two specific serial number sequences would have exhibited any phase problems during recording and this driver corrects the issue.

Version 1.01 Build 37 December 9, 2004

1. Renamed 'LynxTWO Mixer' to 'Lynx Mixer'.

2. Fixed AES16-SRC Adapter Page in Lynx Mixer to correctly display SRC Enable & SRC Match Phase controls upon startup.

3. Lynx Mixer now saves the state of all the AES16 controls upon exiting and when saving a Scene.

4. Added Settings > Device Settings dialog box to Lynx Mixer to allow for configuration of the driver performance. PLEASE NOTE: The driver must not be active when making changes to the Device Settings dialog box. You must manually ensure the the transfer size set in the Lynx Mixer is less than or equal to the buffer size set in the application, otherwise audio break-up may occur. Reducing the number of active devices does not change how the driver appears inside an application, it only turns off the PCI Bus transfers for those devices - thus freeing the system to do other work.

5. Lynx Mixer now only shows the appropriate Settings menu items for the type of card in use.

Version 1.01 Build 36 June 25, 2004

1. First non-beta release of driver.

2. Added support for changing the sample clock source from within applications, such as Nuendo and Audio & MIDI Setup.

3. Put the maximum limit on number of devices at high sample rate (>96kHz) to 5 (giving 10in+10out channels).

Version 1.01 Build 35 June 9, 2004

1. Changed when the time stamp is reported to fix problem with larger record buffers and record buffer wrapping problem.

Version 1.01 Build 34 May 28, 2004

1. Changed how current position is reported to keep erase head getting too close to the playback head.

2. Added Restore Defaults to LynxTWO Mixer Application.

Version 1.01 Build 33 April 13, 2004

1. Complete rewrite of ISR and buffer handling to improve latency performance. Internal Release Only.

Version 1.01 Build 32 March 25, 2004

1. Changed how the DMA transfers are handled to improve reliability (GLIMIT to 256, SO to 256).

Version 1.01 Build 31 March 9, 2004

1. Fixed a problem that misreported the latency to CoreAudio.

2. Changed how the DMA transfers are handled to improve latency performance (GLIMIT to 32, SO to 32).

3. Changed the DMA buffer size to 16 x 256 sample-frames.

4. Fixed the LS-ADAT window to correctly display the position from the Sync In port.

5. Changed the frequency counters in the LynxTWO Mixer to show only one decimal point of accuracy in the kHz range.

6. Fixed a problem with the AES16-SRC Adapter Page that wouldn't allow enabling of the SRC Check Box.

7. Put the maximum limit on number of devices at high sample rate (>96kHz) to 2 (giving 4in+4out channels) as a temporary measure until the next rev of the driver.

Version 1.01 Build 30 January 12, 2004

1. Added support for the AES16 and AES16-SRC.

Version 1.01 Build 29 October 17, 2003

1. Put the maximum limit on number of devices at high sample rate (>96kHz) back to 4 (giving 8in+8out channels).

Version 1.01 Build 28 October 11, 2003

1. Changed the Record Source Menus to not show any check-marks.

2. Put the maximum limit on number of devices at high sample rate (>96kHz) to 5 (giving 10in+10out channels).

Version 1.01 Build 27 October 15, 2003

1. Added Record Source Lookup for Output Page in Lynx Mixer.

Version 1.01 Build 26 October 14, 2003

1. Record Sources Menu in Record/Play page is now adapter specific.

Version 1.01 Build 25 October 11, 2003

1. Fixed a problem that caused audio breakup at higher sample rates (>96kHz).

Version 1.01 Build 24 October 8, 2003

1. Increased the "tolerance" for overruns from 0 to 8.

Version 1.01 Build 23 October 4, 2003

1. Fixed a problem that caused the device to not play anything after using a high sampling rate (>96kHz).

2. Put the maximum limit on number of devices at high sample rate (>96kHz) to 4 (giving 8in+8out channels).

3. Improved overrun detection and recovery.

Version 1.01 Build 22 October 2, 2003

1. Changed the AudioEngine to only prepare and use 6 devices if sampling rate is above 96kHz.

2. Create just one multi-channel device to work around sample rate setting issue with Nuendo 2 & Cubase SX.

Version 1.01 Build 20 September 15, 2003

1. Using the new HalMIDIDevice to fix timecode conversion.

2. Minor improvements in the mixer - Depth popup clipping fixed.

3. Set the dBScale bitmap transparency.

Version 1.01 Build 19 September 11, 2003

1. Under some circumstances the HAL MIDI device was not getting the start call.

2. Some changes to the MIDI Send procedure.

3. Added the MTC Source menu to the mixer.

Version 1.01 Build 18 September 9, 2003

1. The mixer windows are now staggered on the main screen so that you can immediately see multiple windows if there are multiple LynxTWOs in the machine.

2. The MIDI driver is now included with the installer.

Version 1.01 Build 17 August 28, 2003

1. Removed reading of Digital Input status on Adapter page to prevent Mixer from locking up certain Macs.

Version 1.01 Build 16 August 11, 2003

1. Added setting up the sample offset parameter (to help with noise).

2. Added Settings menu functionality.

Version 1.01 Build 15 July 7, 2003

1. Added ability to Load/Save Scenes.

2. Added code to save mixer settings on application close (that's used at bootup).

3. Changed the name of Inputs tab to Record/Play.

4. Added the dB scale display to Outputs and Record/Play page.

5. Changed the name (and functionality) of LS-AES tabs to indicate the LStream ports.

6. Centering window on startup.

Version 1.01 Build 14 July 1, 2003

1. Inputs page now active.

2. Outputs page now active.

Version 1.01 Build 13 June 27, 2003

1. Added code for supporting Mixer controls.

2. Added code to support Kext Interface versioning.

3. Improved time-stamping by taking one on entry to the ISR.

4. Added code to specify sample latency (safety offset).

5. Added LynxTWO Mixer with Adapter Page controls functional. LynxTWO Mixer is installed in the Applications Folder.
Please Note: If you choose an Sample Clock Source other than Internal and then try to play/record something, you must manually insure that the Sample Clock Source has a valid clock running or CoreAudio will get corrupted and only a reboot will allow you to use the audio engine again.

Version 1.01 Build 12 June 18, 2003

1. Changed when the interrupt is enabled to prevent lockups on boot.

Version 1.01 Build 11 June 13, 2003

1. Using optimized float/int conversion routines.

2. Using the last input device for interrupt control/position report.

3. Added the user-mode interface so as to make it work with L2Update.

Version 1.01 Build 10 May 22, 2003

1. Now reporting position based on the "current" DMA buffer block only.

2. Using fewer interrupts.

3. Using the primary interrupt handler for all processing.

4. Added "names" (Play N, Record N) for Streams.

5. Over/under run recovery improvements.

Version 1.0 Build 09 May 16, 2003

1. Driver now has interrupts on only for the last device that is active. This reduces the number of interrupts on the PCI bus.

Version 1.0 Build 08 May 12, 2003

1. Added buffer overrun detection/recovery.

2. Changed the DMA buffer size to 8 x 256 sample-frames.

Version 1.0 Build 07 May 7, 2003

1. First public beta release of driver.

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-end-

Please read this entire document before proceeding with the installation of this driver.

Installation Notes