Audio flicker/judder only on Avid

[ACrui]

This issue has only started occurring the last week, previously there were no issues. When playing a sequence on Avid the audio doesn’t play back properly and judders. This issue doesn’t occur on any other program, just Avid, and it only happens when using NoMachine Enterprise. I have tried reinstalling both NoMachine and Avid and the issue persists. Is there anything that anyone can suggest that might help? The operating system is macOS Monterey.

Thanks in advance.

[Britgirl]

This issue has only started occurring the last week, previously there were no issues.

What has changed on your computer, anything? Did you update something? What version of Avid is it?

and it only happens when using NoMachine Enterprise.

What version of NoMachine are you running? It’s strange that NoMachine was working fine producing audio, and then all of a sudden, the audio quality decreases.

What OS are you connecting from?

[ACrui]

Thanks for the response. Nothing has changed since they issue has started occurring, no updates or anything like that. The version of Avid is 2022.12 and the version of NoMachine is  8.4.2.

The strange thing is that there are 4 machines all with NoMachine set up on it, all with exactly the same specs as above and they’re all working as expected except for this one.

[kubaszym1]

Have you tried restarting the coreaudio daemon?

sudo pkill coreaudiod

It’s strange that it happens only on one machine and only with Avid. Maybe restarting CoreAudio will fix the issue.

[ACrui]

Thanks for your response, unfortunately this hasn’t fixed the issue.

[Britgirl]

Please update to the latest NoMachine version which is 8.5 and on both sides.

Then also confirm exactly which side is macOS because it’s not clear what your set up is. Is it macOS both sides?

[ACrui]

Hi, I have updated both NoMachine on both Macs so they’re the latest version. The issue still persists. The operating system for both machines is Monterey version 12.5.1.

Thanks

[Britgirl]

Please update to the latest 8.9 release and tell us if the issue persists. If it does, please enable debug, try to reproduce the issue and send a complete set of logs of the failed or problematic session that you can extract using the guidelines here:

How to gather debug logs for Support requests
https://kb.nomachine.com/DT07S00243

[ACrui]

I have updated as requested and the issue persists.

The link you provided doesn’t work so I googled it and found this: https://kb.nomachine.com/DT10O00163#1.3 however the instructions aren’t very clear. I don’t know what it means when it says remove the # from the key name (uncomment) and set the following: SessionLogLevel 7 Once I have navigated to server.cfg.

Thanks

[Britgirl]

Apologies for the incorrect link, now corrected and repasted here:
https://kb.nomachine.com/DT07S00243

Please use the instructions in this document and not the document you found which is for an old version of NoMachine and does not apply to you. I have pasted the first step here for your convenience.

First Step: Enable Debug Level on the Problematic Server/Node Host
(macOS)

Open a terminal on your mac machinee and run:

$ sudo /etc/NX/nxserver --debug --enable all

then continue with steps in the document. You can send everything to forum[at]nomachine[dot]com. Please use the title of the topic as the subject of your email. Thanks.

[ACrui]

Thanks for your help, I have just emailed the Debug Log to the email address you provided.

[kubaszym1]

Hi,

I’ve read the logs you send, but unfortunately I didn’t find anything that would suggest where the problem was. Can you send a sample of bad playback from Avid? It will be easier to investigate if I know how it sounds.

It’s possible that it’s the Avid’s fault. Please check if there are known Avid’s issues with remote desktops.

I will look at your logs once more, hopefully I’ll find out some more information.

Regards,

Kuba

[ACrui]

Hi Kuba,

I have found a solution, it was an Avid issue after all. To fix it I went into user settings > audio and reduced the Play Buffer Size.

Thanks for your help!

 

 

[Britgirl]

Thanks for letting us know. It will be useful for other Avid users, I’m sure.

[Author]

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