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Lynx Studio Technology FAQ

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FAQ Navigation:

Getting Started/Installation

	How do I update my firmware?
	What is the proper sequence of installing the card, firmware, and driver?
	What do I need to connect multiple cards to a system?
	How do I install the AES16e card?
	I use two AES16e's and two Aurora 16's. How should I clock them together?
	How to install driver on Big Sur

General FAQ

	What is the process to update the drivers and firmware?
	Can I use the AES16e in a Thunderbolt expansion chassis?
	Can I use the AES16e with S/PDIF devices?
	What is the maximum cable length that's been tested with the AES16e?
	This is supposed to be a 16-in/16-out card, but I only see 16 XLR connections. What gives?
	SynchroLock takes a while before it locks to my clock source, is this normal?
	Is there a way to change the input level of audio coming into the AES16e?
	When do I need to update my firmware?
	What are the pinouts for the AES16e?
	What are the pinouts for the AES16e cables?
	How do I use the Lynx Mixer for input monitoring?
	PCI Express cards Apple Big Sur and Apple Silicon M1 support

Troubleshooting

	I get clicks and pops when I increase my sample rate to 96k. Is there a compatibility problem?
	My computer is not recognizing the Lynx card. What could be wrong?
	I cannot change the clock source in the Lynx Mixer - it keeps reverting back to the previous setting
	The firmware updater for the AES16e failed. How do I get the card to be seen by my computer?
	Driver signing error in Windows 10
	Inputs cannot be recorded in macOS 10.14: Mojave
	In macOS 10.13 or above, drivers were installed but the device does not appear to OS. Lynx Mixer will not launch.
	How to resolve dropouts when playing or recording
	HP Z240 Computer and AES16e
	Windows 10 Installation - error message during install: DIFXAPI_Error - PnP Install Failed

Lynx AES16e

How do I update my firmware?

First make sure that the drivers are installed and functional. Launch the Lynx Mixer to insure that it opens without problems. To update your Lynx card's firmware, make sure that all audio applications and the Lynx Mixer are closed. Then launch the firmware updater file downloaded from the Lynx support page and follow the prompts. You will need to shut off the computer after successfully flashing the firmware.

Lynx AES16e

What is the proper sequence of installing the card, firmware, and driver?

Install card
Install driver
Check Lynx Mixer > About for firmware version on card.
Update firmware if it is not already current.

Lynx AES16e

What do I need to connect multiple cards to a system?

Up to six Lynx PCIe and Thunderbolt devices can be installed in a single computer and utilized by a single application. If multiple devices are added initially the driver will find and connect to them all. Even if devices are added later, they will automatically be mounted by an installed driver.

It is crucial to establish a Master/Slave clock relationship so that all cards are operating off of the same sample clock. Either an external clock source should be used that provides sample clock to all of the cards via their word-clock or digital in connections, or our CBL-ICC Internal Clock Cable should be used to synchronize the card's sample clocks. If an external clock source is used, the clock source for each card should be set to the appropriate source (either "Digital" or "External") from the Lynx Mixer Adapter page - there will be one tab in the Lynx Mixer for each card.

If our CBL-ICC cable is used to synchronize the cards internally, one card acts as the master to supply a clock signal to the other slave cards in the system. Generally, the card that is identified in the operating system as card #1 should be selected as the master. This allows software applications to still send sample rate change messages down to all the cards. Starting with the master card, connect the cable from its "Clock Out" header connector to the "Clock In" connector on the next card. Continue the clock "daisy chain" by connecting the "Clock Out" to "Clock In" for the remainder of the cards. From the Lynx Mixer, set the sample clock source on the Adapter page for the master card to the appropriate clock source ("Internal", "Digital", etc.). For the slaves, set the sample clock source to "Header".

Within operating system, each Lynx card will be identified by a unique adapter ID number (i.e. AES16e 1, AES16e 2, etc.) so you can choose record and play channels appropriately. Please refer to the "Configuring Multiple Lynx Cards" section of your user manual for more information

In a Windows system, all of the I/O will appear automatically as an ASIO device with the number of channels that is a sum of the cards installed.

In OSX, an aggregate device must be created to use the I/O from multiple cards within a single application. Here are the steps:

Go to Audio Midi setup from Applications > Utilities
Click the "+" in the bottom left to create a new aggregate device.
Click the checkbox for AES16e #1, and then the one for AES16e #2 in the right pane
Uncheck drift for device # 2 (it should be off for both)
Rename the aggregate device if you wish
Select the aggregate device from with your DAW

Lynx AES16e

How do I install the AES16e card?

STEP 1: Hardware Installation

Turn OFF the power to your computer system and disconnect the power cords.
Touch a metal plate on your computer system to ground yourself and discharge any static electricity.
Remove the cover from your computer chassis and select an empty PCI slot in your computer.
You should refer to your computer system documentation for any special instructions on installing expansion cards and peripheral equipment.
Unscrew and remove the slot cover from your selected PCIe slot. Note: Teh AES16e can be installed into any type or size of PCIe slot, from x1 to x32.
Insert the Lynx card into the selected PCIe slot and press it down so that the contacts are securely seated.
Secure the bracket of the Lynx card to the computer chassis using a chassis screw or retaining bracket.
Replace the computer chassis cover and reconnect the power cord.
Connect the Audio cables to the Lynx card. See the AES16e User's Guide for more information.

STEP 2: Installation Files
All Necessary driver files can be found in the Support>Downloads section of the Lynx Studio website

Lynx AES16e

I use two AES16e's and two Aurora 16's. How should I clock them together?

Presuming that your studio does not have a master clock, there are two typical clocking methods used in this situation:

1.) Card as Master

Connect the Lynx CBL-ICC cable from the clock out pins on card #1 to the clock in pins on card #2
In the Lynx Mixer, set the PREFERRED CLOCK SOURCE for AES16e card #1 to "Internal"
Set the PREFERRED CLOCK SOURCE for AES16e card #2 to "Header" (if the ICC cable is connected correctly, you should see a sample rate next to "header" under preferred clock source in the Lynx Mixer)
Set the SYNC SOURCE for both Auroras to "AES A"
Power Cycle the Auroras with the front panel power switch to save this state.

With this clocking method, the system will respond automatically when you change sample rate in your audio software.

2.) Aurora as Master

Connect a wordclock cable from the Aurora #1 WORDCLOCK OUT, to the Aurora #2 WORDCLOCK IN
Set the SYNC SOURCE on Aurora #1 to "INT"
Set the SYNC SOURCE on Aurora #2 to "EXT"
Power Cycle the Auroras with the front panel power switch to save this state. In the Lynx Mixer, set the PREFERRED CLOCK SOURCE on both AES16e cards to "Digital In 1"

Lynx AES16e

How to install driver on Big Sur

It is imperative that you start by updating macOS 11 Big Sur to the latest version. Early versions of Big Sur would not load kernel extensions properly, so trying to install the driver on a system without the latest updates from Apple would be pointless.

Check and make sure you have the latest version of Big Sur.

Click on the Apple icon, then select System Preferences

Select Software Update

Allow the system to update to the latest version

After the operating system is completely up-to-date, please follow these step by step instructions to check the installation of the driver on macOS 11 Big Sur.

Download driver from Lynx web site.

Open the ZIP file.

Open Installer Package: Lynx_macOS.pkg.

Click Continue

To accept the license agreement, click Continue

Next click Install

The driver will install automatically.

If the Macintosh has an M1 processor, you may be prompted to enable system extensions in the Recovery environment. If this not an M1 processor, or if system extensions have already been enabled, skip down to "System Extension Updated".

If so, click on Shutdown. and restart the Macintosh in the recovery environment by holding down the power key an continuing to hold down the power key until the recovery environment starts.

Click on Security Policy...

Select "Reduced Security" and make sure "Allow remote management of kernel extension and automatic software updates" is checked. Next click on OK and restart the Macintosh.

You will see the "System Extension Updated" message, click on "Open Security Preferences"

The Security & Privacy page will display and shows that "System software from developer" needs to be allowed.

Click on the "Lock" icon to unlock the panel.

Next click on the "Allow" button to allow the driver to load. The system should prompt you to restart.

Click the "Restart" button to restart the Macintosh and the driver installation is now complete.

Lynx AES16e

What is the process to update the drivers and firmware?

Windows:

Close all audio apps and the Lynx Mixer
Click Start > All Programs > Lynx Studio Technology > Uninstall Lynx Driver
Reboot when prompted
Download and install the current driver build
Download and install the current firmware updater
Shut down computer when prompted.

macOS:

Close all audio apps and the Lynx Mixer.
Download the current driver build.
The driver elements will be extracted to a folder called Lynx_OSX_XXX. Whitin that folder is a file called "Uninstall Lynx Driver". Run this program and reboot when prompted.
Return to the Lynx_OSX_XXX folder and click Lynx_OSX.pkg to run the driver installer.
Reboot when prompted.
Download and install the current firmware updater.
Shut down computer when prompted..

Lynx AES16e

Can I use the AES16e in a Thunderbolt expansion chassis?

Yes. The AES16e will work in a certified Thunderbolt to PCI Express expansion chassis. We have tested the Sonnet, Magma and Akitio chassis and found them to be excellent solutions. The mLogic mLink chassis will not work because the AES16e card will not physically fit into the chassis.

Lynx AES16e

Can I use the AES16e with S/PDIF devices?

It is possible to send S/PDIF sources into the AES16e inputs. However, you should not connect AES16e outputs into S/PDIF devices - equipment damage could result. The E22 and E44 cards do support S/PDIF devices through their digital I/O ports with the appropriate adapter cables.

Lynx AES16e

What is the maximum cable length that's been tested with the AES16e?

We've tested the AES16e with 500 feet of Belden 1800B cable and data was passed bit perfect without errors at sample rates up to 192kHz. At 96kHz, the signal from the output after it had passed through 500 feet of cable still met the AES standard. This is well beyond the AES/EBU spec of 100 meters. In practice, it is probably best to keep the maximum cable run to under 500 feet to allow for additional noise injection from extraneous sources.

Lynx AES16e

This is supposed to be a 16-in/16-out card, but I only see 16 XLR connections. What gives?

AES/EBU connections are stereo, therefore 8 XLR female cables provide 16 inputs and 8 XLR male connections provide 16 outputs.

Lynx AES16e

SynchroLock takes a while before it locks to my clock source, is this normal?

The AES16e incorporates SynchroLock clock synchronization technology to provide extreme tolerance to noisy external AES/EBU and word clock signals while generating an ultra-low jitter clock.

The SynchroLock sample clock is a two-stage system that is comprised of a fast-locking analog PLL and digitally controlled crystal-based secondary stage. Due to extensive number crunching of the secondary stage, SynchroLock typically requires one to two minutes to achieve final lock. While the secondary stage is working, the fast-locking PLL loop maintains lock, but with much less jitter attenuation than the secondary stage.

At the moment that final lock is achieved there can be an audible glitch. For this reason it is best to not record with the AES16e until final lock has been achieved.

Lynx AES16e

Is there a way to change the input level of audio coming into the AES16e?

The AES16e provides only digital connections to external devices. It is not possible to adjust input levels with the AES16e. Instead, output levels should be set from your signal source.

Lynx AES16e

When do I need to update my firmware?

It is suggested that you update the firmware on the AES16e when:

You intend to update the driver and a firmware update is required for full driver functionality
You are instructed to do so by Lynx technical support

Lynx AES16e

What are the pinouts for the AES16e?

Port A

Pin	Signal	Pin	Signal	Pin	Signal
1	Clock Gnd	10	Clock In
2	OUT4 Cold	11	OUT4 Hot	19	OUT4 Gnd
3	OUT3 Gnd	12	OUT3 Cold	20	OUT3 Hot
4	OUT2 Cold	13	OUT2 Hot	21	OUT2 Gnd
5	OUT1 Gnd	14	OUT1 Cold	22	OUT1 Hot
6	IN4 Cold	15	IN4 Hot	23	IN4 Gnd
7	IN3 Gnd	16	IN3 Cold	24	IN3 Hot
8	IN2 Cold	17	IN2 Hot	25	IN2 Gnd
9	IN1 Gnd	18	IN1 Cold	26	IN1 Hot

Port B

Pin	Signal	Pin	Signal	Pin	Signal
1	Clock Gnd	10	Clock Out
2	OUT8 Cold	11	OUT8 Hot	19	OUT8 Gnd
3	OUT7 Gnd	12	OUT7 Cold	20	OUT7 Hot
4	OUT4 Cold	13	OUT4 Hot	21	OUT4 Gnd
5	OUT5 Gnd	14	OUT5 Cold	22	OUT5 Hot
6	IN8 Cold	15	IN8 Hot	23	IN8 Gnd
7	IN7 Gnd	16	IN7 Cold	24	IN7 Hot
8	IN6 Cold	17	IN6 Hot	25	IN6 Gnd
9	IN5 Gnd	18	IN5 Cold	26	IN5 Hot

XLR Connectors

Pin	Signal
1	Gnd
2	Hot
3	Cold

Clock In (JP2)

Pin	Signal
1	Clock In
2	Gnd

Clock Out (JP3)

Pin	Signal
1	Clock Out
2	Gnd

Lynx AES16e

What are the pinouts for the AES16e cables?

CBL-AES1603 pin out

DA-26-M pin	Signal	DB-25-M pin
9	IN1/OUT1 Gnd	10
26	IN1/OUT1 Hot	1
18	IN1/OUT1 Cold	14
25	IN2/OUT2 Gnd	12
17	IN2/OUT2 Hot	2
8	IN2/OUT2 Cold	15
7	IN3/OUT3 Gnd	13
24	IN3/OUT3 Hot	3
16	IN3/OUT3 Cold	16
23	IN4/OUT4 Gnd	13
15	IN4/OUT4 Hot	4
6	IN4/OUT4 Cold	17
5	IN5/OUT5 Gnd	22
22	IN5/OUT5 Hot	5
14	IN5/OUT5 Cold	18
21	IN6/OUT6 Gnd	22
13	IN6/OUT6 Hot	6
4	IN6/OUT6 Cold	19
3	IN7/OUT7 Gnd	24
20	IN7/OUT7 Hot	7
12	IN7/OUT7 Cold	20
19	IN8/OUT8 Gnd	25
11	IN8/OUT8 Hot	8
2	IN8/OUT8 Cold	21

CBL-AES1605 pin out

DA-26-M pin	Signal	DB-25-M pin
9	IN1 Gnd	22
26	IN1 Hot	5
18	IN1 Cold	18
25	IN2 Gnd	22
17	IN2 Hot	6
8	IN2 Cold	19
7	IN3 Gnd	24
24	IN3 Hot	7
16	IN3 Cold	20
23	IN4 Gnd	25
15	IN4 Hot	8
6	IN4 Cold	21
5	OUT1 Gnd	10
22	OUT1 Hot	1
14	OUT1 Cold	14
21	OUT2 Gnd	12
13	OUT2 Hot	2
4	OUT2 Cold	15
3	OUT3 Gnd	13
20	OUT3 Hot	3
12	OUT3 Cold	16
19	OUT4 Gnd	13
11	OUT4 Hot	4
2	OUT4 Cold	17

Lynx AES16e

How do I use the Lynx Mixer for input monitoring?

That is best answered with this video:

Lynx AES16e

PCI Express cards Apple Big Sur and Apple Silicon M1 support

The AES16e, E22 and E44 are currently supported on Big Sur with both the Intel and Apple Silicon M1 chip.

Lynx AES16e

I get clicks and pops when I increase my sample rate to 96k. Is there a compatibility problem?

It is important to consider that as sample rate increases, your computer has less time to process the same amount of data. For instance, at a sample rate of 48kHz, a buffer size of 128 samples will produce a latency of 2.66ms. At 96kHz, the same buffer size would produce a latency value of 1.55ms. At the higher rate, your computer may not be fast enough or have the resources available to play the audio without errors. Consequently, it is likely that you would need to increase the buffer size to allow your computer to work more efficiently. Note that if you are doubling the sample rate, for example, you can double the size of the buffer and maintain the same latency at the higher sample rate.

Lynx AES16e

My computer is not recognizing the Lynx card. What could be wrong?

Verify that the Lynx card is properly seated in a PCIe slot. You might also try to clean the PCIe contacts with a clean cloth and some Isoprophyl in case there is any corrosion on the contacts.
Make sure that the current Lynx drivers for the card are installed. Check that the driver system requirements to insure that your computer has compatible elements. f possible, see what the LED on the AES16e card is doing, there are four possible states: A) LED is Brightly Lit. The card is communicating correctly with computer had a hardware level, Your problems is likely in the software domain. B) LED is Dimly lit. The firmware is not loaded. Try jumpering the card for Prom 1 and try again (explained below). C) the LED is Flashing. This is generally a driver problem. Try uninstalling and reinstalling the current drivers. D) The LED is not lit at all. In this case there is either a hardware problem with the card, a problem with the PCIe slot, a compatibility issue, or a firmware issue. Jumper for Prom 1 and test again.
The AES16e has two EEPROMs onboard. If the firmware gets corrupted, this allows the user to switch to an alternate prom to resolve the problem. Here are the steps: A) Turn off and unplug the computer and remove the AES16e card. B) On the Component side of the board there is a multi-pin connector with a sheath around it. Next to this are three pins labelled JP7. Two of the pins are capped with a jumper.
C) Next to the capped pins it is silk screen "Prom 2". Remove the jumper and place it one pin over, by the side labelled "Prom 1". The middle pin will still be capped.
D) Return the card to its slot, plug in and turn on the computer.
E) If the OS now recognizes the card, run the latest firmware updater for the card.
F) When complete, shut down computer.
G) Remove the AC cord, remove the card, and put the jumper back to its original position. on the side labeled Prom 2.
H) Reinstall the card and boot into the OS. The card should now operate with the current firmware.

If the card still is not seen with the jumper on Prom 1, there is either a problem with the card or the computer's PCIe slot. Contact Lynx Technical Support for next troubleshooting steps.

Lynx AES16e

I cannot change the clock source in the Lynx Mixer - it keeps reverting back to the previous setting

Clock settings can only be changed when no audio applications or processes are accessing the Lynx card drivers. Close any open audio applications or halt any audio processes that cause the card to be recording or playing before changing clock settings in the Lynx Mixer program.

Alternatively, it is possible to enable clock changes when the driver is active by selecting from the Lynx Mixer:
Settings > Advanced > Allow Clock Change if Active.

Lynx AES16e

The firmware updater for the AES16e failed. How do I get the card to be seen by my computer?

If you recently updated the firmware on your AES16e card and the firmware updated failed, you may need to revert to the factory firmware to have the card seen by your computer system. To do this:

Turn off and unplug the computer and remove the AES16e card.
On the component side of the board there is a multi-pin connector with a sheath around it. Next to this are three pins labelled JP7. Two of the pins are capped with a jumper.
Next to the capped pins it is silk screen "PROM 2". Remove the jumper and place it one pin over, by the side labelled "PROM 1". The middle pin will still be capped.
Return the card to its slot, plug in and turn on the computer.
If the OS now recognizes the card, run the latest firmware updater for the card. When complete, shut down computer.
Remove the AC cord, remove the card, and put the jumper back to its original position on the side labeled "PROM 2".
Reinstall the card and boot into the OS. The card should now operate with the current firmware.

Lynx AES16e

Driver signing error in Windows 10

When installing Lynx drivers build 23e and above, you may get an error message that the drivers will not show as being signed. The drivers are signed by Lynx, but they are not counter-signed by Microsoft (which is a very long and difficult process). As such, Windows 10 Build 1607 and higher will not load the driver unless you disable driver signature enforcement. Here are the steps to do so:

First off, since you will be disabling a security feature of Windows, after completing these steps take care to only install drivers that you trust to avoid potential corruption of your OS.
We will be using a "test signing mode" in Windows to get past the driver signing enforcement. Start by right-clicking the Start button, and selecting "Command Prompt (Admin)".
Paste the following command into the Command Prompt window and press Enter:
```
bcdedit /set testsigning on
```
Restart your computer to enter test mode. After re-boot you will see a "Test Mode" watermark in the bottom-right corner of the screen. In this state you can successfully install the Lynx Drivers.
To leave test mode (which will disable the ability to use the Lynx driver), open a Command Prompt (Admin) window again and run the following command:
```
bcdedit /set testsigning off 
```

Lynx AES16e

Inputs cannot be recorded in macOS 10.14: Mojave

If you are not able to record input signals in your DAW, it is because of something that happened at first launch of the DAW.

You may have seen a messages such as: "X App would like to access the microphone". Your options are "OK" or "Don't Allow". If you click "OK", you will have normal behavior in the DAW. If you choose "Don't Allow" then you will not receive input signals into the DAW.

In that case, you can restore normal operation by navigating to System Preferences > Security and Privacy > Privacy. From the list on the left, select "Microphone", then put a check next to the DAW or DAWS that you wish to record with.

Lynx AES16e

In macOS 10.13 or above, drivers were installed but the device does not appear to OS. Lynx Mixer will not launch.

Starting with macOS 10.13 (High Sierra), Apple has added a new security feature that prevents third-party kernel extensions from loading without specific user authorization. For more information about this from Apple, please see TN2459.

To install the driver completely, first open the Lynx_OSX.pkg that was downloaded from the www.lynxstudio.com web site. After the driver installs, you may receive a message that a Kernel Extension has been blocked. Either way, go into the Security & Privacy of the Systems Preferences pane, and click "Allow" for the Lynx Studio Technology extension. Once you restart your system the driver should load properly.

Lynx AES16e

How to resolve dropouts when playing or recording

When you get dropouts when playing or recording, this is an indication that the computer is not responding fast enough to interrupts from the audio device, or that the computer is taking too long in processing the audio before the audio must be transferred to the audio device to be played. The most common reasons for dropouts are:

Buffer size is too small for the sample rate and number of channels selected.

To resolve this, increase the buffer size.

Power management is causing the processor to go to sleep, which takes quite a bit of time to wake up, causing the interrupt to be responded to too slowly.

To resolve this, in the BIOS of the computer:

Turn off Intel SpeedStep (sometimes labeled EIST).
Turn off C-States: C1E; C3 and C6.
Turn off Intel Trusted Execution Technology.

In Control Panel, set your Windows Power Options to High Performance.

Lynx AES16e

HP Z240 Computer and AES16e

Problem: The AES16e will not be seen by the HP Z240 computer and will the driver will not load. The LED on the top of the card will not illuminate at all.

Solution: In the Z240 BIOS change the setting under Advanced called "Early PCIe Delay". The default value of this is "Disabled" and it must be set to "Enable" in order for the AES16e to be seen by the HP Z240 computer and the drivers to load.

HP.BIOS.png

For reference, the LED on the top of the AES16e has four states to show the status of the card:

Off. No power to the card or the PCI Express slot is disabled.
Dim. The card is receiving power, but the firmware did not load. Check the PROM jumper.
Flashing. The firmware loaded but the driver has not been loaded yet.
On solid. The driver loaded successfully.

Lynx AES16e

Windows 10 Installation - error message during install: DIFXAPI_Error - PnP Install Failed

Follow these steps to resolve:

Remove the driver from Start > All Programs > Lynx Studio Technology > Uninstall Lynx Driver (or C > Program Files > Lynx Studio Technology V2Uninstall or V3Uninstall)
Reboot when prompted
Run the driver installer, but do not continue once the DIFXAPI_ ERROR message comes up
Go to device manager
Right Click the Lynx Device under Sound, Video and Game Controllers and choose "Update Driver"
Point the installer to C:Program FilesLynx Studio TechnologyV2Driver or V3Driver for the driver files

Continue installation