Question / Help OBS Studio Audio Drop/Clipping Out

[Lunar Tides]

So, I'm pretty new to OBS Studio. I've been using Old OBS to stream with my band on twitch, but finally
wanted to make the jump to studio due to it's features, and better performance.

Everything was seeming to go smooth tonight, until we started getting these random audio drops. Almost like
a frame drop, but we had no dropped frames.

Eventually I just fired up old OBS, and we finished our stream with no audio issues.

I have the audio set the same, in both programs.


Has anyone encountered this before? I'm just at a loss to even figure out what it is. If Old OBS Audio is working fine
but OBS Studio is dropping>

Here is a clip of what the audio is doing. (Sorry if you dislike our kind of music a head of time, we're just an ameture rock band having fun on twitch.

https://clips.twitch.tv/WanderingMuddyUdonPhilosoraptor

Any help would be greatly appreciate. totally stumped on this one.

Thanks.

Lucas

 

[c3r1c3]

Okay, heard the drop. Can you post the logfile for that session?
https://obsproject.com/forum/threads/please-post-a-log-with-your-issue-heres-how.23074/

 

[Lunar Tides]

https://gist.github.com/7a00b57532da0b909440bcd4236a19cf

I think that might have been one of the log files where it was happening. I've done a few test recordings since then.

I was trying to upload the actual log file I thought it was but It seems to not be letting me.

Oh it looks like it did. The attached .txt is the log file that it was happening a lot while streaming I -think-
Then I uploaded the last log file we did, before switching back to old obs.

 

[Lunar Tides]

Update. My camera's might not like the I420 Format. Switched them all to MJEG Instead of "any" since they were all auto assigning themselves as I420...

Just did a test recording of about 2 songs worth. No audio drop.


If that is the case. Anyone ever experienced that problem with C920's and the I420 format?

 

[c3r1c3]

You have a USB Audio interface, and 3x USB webcams. You're most likely running into USB interrupt overload (which Studio is more sensitive to then Classic). When you switched to MJPEG you lowered the bandwidth and interrupt usage.

A general tip is to get USBView from https://obsproject.com/downloads/usbview.zip to identify which hubs your devices are connected to. Move bandwidth-hungry devices like webcams and interrupt/latency-sensitive things like Audio devices to separate hubs by switching their USB ports.

 

[Lunar Tides]

Thank you for that link. I will Def check it out. I have a separate pcie card with five USB ports for the cameras then our interface is on a separate USB hub from the back of the pc. Had I known about these bandwidth limitations I would have maybe spent a little more on more powerful hardware haha. I guess that'll just give me a reason to build another pc. Thanks for all your help. Really appreciate it.