Question / Help Issues with audio cutting out from HDMI capture during stream

[KateLibC]

I am running the most recent version of OBS (25.0.8) for macOS and am running into an unusual problem where the audio from my USB 3.0 HDMI capture device (AverMedia Live Gamer Ultra) just simply cuts out at some point while streaming. To make matters more bizarre is that the audio mixer show that there is audio coming in and the monitor mode has audio.

I caught the following in the logs:

21:02:31.503: adding 46 milliseconds of audio buffering, total audio buffering is now 975 milliseconds (source: Mic/Aux)
21:02:31.503: 
21:02:31.561: adding 46 milliseconds of audio buffering, total audio buffering is now 1021 milliseconds (source: Mic/Aux 2)
21:02:31.561: 
21:02:31.633: Max audio buffering reached!
21:02:31.633: adding 23 milliseconds of audio buffering, total audio buffering is now 1044 milliseconds (source: Mic/Aux 2)

What is causing the buffer to fill up exactly?

I've done a few things to try and get around the problem such as just rebooting the system before streaming and updating the firmware on the USB capture device, but this does not appear to solve the problem. My gut says that it has to do with the stream aspect although I cannot confirm unless I replicate it and record to disk. Closing and reopening OBS does however appear to fix the issue.

System specs
Mac Mini (2018), i5 6-core, 32 GB RAM
macOS 10.15.4
AverMedia Live Gamer Ultra (GC553)

 

[cnunes73ucb]

Hi, Which configuration are you using in you Avermedia?

Attached is my configuration.

 

[cnunes73ucb]

Let's go to VMIX, it doesn't happen there.
Here support does not answer this problem that has been around for a long time and nobody solves it!!
Terrible

 

[KateLibC]

Unless I am mistaken, it looks like you're sharing with me the Windows version of OBS. In this case, this is macOS.

However, to answer your question:

Ignore the "no signal" since I am not running anything through it at the moment.

And that is my current audio settings.

I am a hair short of just filing this as a bug report as there is no rhyme or reason for why this occurs. There is also an issue where if the Avermedia device isn't set as the first audio input it often just won't stream at all, which is obnoxious.

One thing I did notice today is that it looks like it just cycles on the same second of audio when it does die so it probably has nothing to do with the streaming.

 

[KateLibC]

I went ahead and filed this as a bug:

[BUG] Audio capture from AverMedia GC553 appears to encounter a buffer issue · Issue #2935 · obsproject/obs-studio

Platform Operating system and version: macOS 10.15.4 OBS Studio version: 25.0.8 (mac) Expected Behavior Audio passed via HDMI capture from an AverMedia Live Gamer Ultra (GC553) should just pass rig...

github.com

It doesn't seem to be a setting issue and the logs appear to add up to something else going awry.