Audio de-syncs with an audible corruption

BigCasperr

BigCasperr

New Member
Sometimes, the audio kinda "hitches" with a wierd sound (you can hear it if the part is a bit quiter) and with that it falls behind the video, as if audio "dropped frames" and the encoder didn't know what to do. I say "as if" since I can only describe the symptoms. Whadda I do?
 
You could provide the OBS log from your session and - if possible - a link to the YT video or stream, where the problem can be heard.
 
I won't have the logs. They do not exist (I attempted a reinstall and cleaned EVERYTHING). If it persists during the next recording session I'll get the logs then.

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Edit: I only recently discovered that there's the hitch sound after I saw an anomaly on the waveform, so it's unlikely you'll just hear it.
 
Not sure if that log is the right one. You should know. This log here says alot of problems (even dns based resolution issues) and seems to be incomplete session?
 
I just finished a 62 minute one so that forum could diagnose the problem better. This time, the audio gets a 5s delay after first 3 minutes and gets worse from there. While recording, there were some scratch noises (like a loose cable sound but it wasn't "over" the rest like a normal loose cable would be, and the port works fine except when I'm recording) that didn't make it into the recording for some reason. The last session I didn't hit the hotkey right and closed the game widow before the recording ended. The new one went correctly and I can upload the raw video somewhere if you want.
 

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Hi Casperr, sorry anyway but i've to repeat: the log is over 6 seconds. Can you see this, too?
It starts 13:59:59 and ends already 14:00:05.794, which is roughly six seconds later.

It ends with "ShutdownAppActiveTracker: UnhookWindowsHookEx succeeded". Maybe there is something shuffled due to using Streamlabs-OBS mixed?

I don't have any experience with Streamlabs-OBS or mixed installation. So somebody else should have a look about...
 
Oh, yeah, no problem. I see that the log is 6 seconds, I've read through it. If you were surprised, then there is two of us. I've only ever installed OBS. A bit of good news though: I've cleaned the BIOS settings, even though I didn't change much, and it works for now. No de-sync on a 40 minute test. I'll check it out more later.
 
Update: it's de-syncing again. The settings are stock, fresh OBS install. It's minor for now, around 90 frames per hour.
 
Without actual log of a session hardly anything can be said.
Aside of that i had a terrible issue by myself (a hardly noticable change of sound, but it could be heard very clean due to an 1kHz test tone i made yesterday). So i found the ffmpeg aac encoder builtin to obs (obs 26.1.1 64-bit on win7) very buggy.
Yesterday evening i tried to install the CoreAudio-Encoder by Apple (i hated to install apple soft on a windows machine). But - tadaaaa - it helped! The sound (either recording or streaming) now is without any disturbing glitches but clear as input.

You can try for your own if that helps in your situation (without any guarantee):

OBS Studio crashing cause of avcodec-58.dll

Hey there! A friend of mine recently has issues with streaming with his PC. I analyzed the settings and already updated his amd chipset drivers, gpu drivers, ran obs as an administrator, changed sample rates of the audio settings, removed/reinstalled OBS and removed all user settings and then...
obsproject.com
 
konsolenritter said:
Without actual log of a session hardly anything can be said.
Aside of that i had a terrible issue by myself (a hardly noticable change of sound, but it could be heard very clean due to an 1kHz test tone i made yesterday). So i found the ffmpeg aac encoder builtin to obs (obs 26.1.1 64-bit on win7) very buggy.
Yesterday evening i tried to install the CoreAudio-Encoder by Apple (i hated to install apple soft on a windows machine). But - tadaaaa - it helped! The sound (either recording or streaming) now is without any disturbing glitches but clear as input.

You can try for your own if that helps in your situation (without any guarantee):

OBS Studio crashing cause of avcodec-58.dll

Hey there! A friend of mine recently has issues with streaming with his PC. I analyzed the settings and already updated his amd chipset drivers, gpu drivers, ran obs as an administrator, changed sample rates of the audio settings, removed/reinstalled OBS and removed all user settings and then...
obsproject.com
Click to expand...

The thing I found is that the longer the OBS is installed the worse the de-sync gets. The next recording I did has a 180 frames de-sync per hour.
 
That sounds really strange, i must admit. I don't know any full state that is saved by obs from runtime to runtime. So the de-sync (delay) should start each obs runtime with zero and reach alltime the same amount (for equal times running). :o

1800 frames off is 1,6% deviation. **brooding**

Which sound sources you see in the mixer the most of the time?
 
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