Question / Help OBS Studio is adding a continuous audio buffer which I think causes the gradual desyncing issue.

[Straticus77]

I was looking through my log file and noticed that throughout the log it's saying that a constant 21ms of audio buffer is being added which eventually drove up the total audio buffering time to over 900ms! No wonder my streams video and audio are out of sync. Is there any way to remove this so that my game audio and video stay in sync for the duration of the stream? I'm using OBS Studio 0.16.6 and and an Elgato HD60. The issue being that after a short amount of streaming time, the game video and game audio do not match up and become severely out of sync. I have no idea how to fix this problem and every solution that I've seen thus far doesn't fix it. What can I do? Also I attached my log file so you can see for yourself what may be the issue.

 

[Xaymar]

Do you have "Use device timestamps" checked in audio device properties? You can access the settings for those by clicking the gear icon, then properties on it's entry in the audio mixer.
If you have it checked, you should try it with it unchecked. I know that with my setup (Virtual Audio Cable) it causes desync due to the VAC driver attempting to generate proper timestamps but failing to do so.

 

[Straticus77]

Hmmm I'll have to try that!

 

[Jordan Muntz]

Why don't I have that setting. Do I have a newer version of OBS?

 

[Straticus77]

Do you have "Use device timestamps" checked in audio device properties? You can access the settings for those by clicking the gear icon, then properties on it's entry in the audio mixer.
If you have it checked, you should try it with it unchecked. I know that with my setup (Virtual Audio Cable) it causes desync due to the VAC driver attempting to generate proper timestamps but failing to do so.

I actually don't seem to have that option either. It just shows me the properties for the Elgato HD60 which is my "Video Capture Device" no option for "Use Device Timestamps"

 

[Xaymar]

Make sure you click on this gear, not any of the other gears:

Edit: The options shown will be different depending on the type of source, for audio sources it will show that option.

 

[Straticus77]

Yea I did. and it only has this (second image is the rest of the list).

 

[Xaymar]

Yea I did. and it only has this (second image is the rest of the list).

Does the Elgato HD provide a separate Audio device to capture? If so you can add it directly using an "Audio Input Capture" source, which does offer that setting. You'll just have to mute the Video Capture Source in the mixer.

 

[Straticus77]

Does the Elgato HD provide a separate Audio device to capture? If so you can add it directly using an "Audio Input Capture" source, which does offer that setting. You'll just have to mute the Video Capture Source in the mixer.

Unfortunately I don't believe it does. It only allows me to add the Elgato through a "Video Capture Device."

 

[Straticus77]

Bump.