OBS question

ikonix360

ikonix360

Member
At church I use a blackmagic Web presenter to feed video from a camera and audio from a mixer into a PC with the audio fed through Voicemeeter Banana so that I can send the audio to OBS and also to a TV in the nursery through HDMI and also headphones in the sound booth.

Anyways I want to add some audio processing external to OBS using Voicemeeter Banana.

Does OBS resync the audio and video if it gets out of sync due to any delays in the audio path once the audio is fed to the PC through the USB connection?
 
no. There is no sync no matter where you add a delay. You have to sync manually and if anywhere the delay is variable and not a fixed value you are screwed.
 
I do know looking at the log file that OBS does add a small audio buffer so is that it syncing the audio and video based on the filters used or is that something else?

I could not find where a video buffer was added though.
 
Buffers are everywhere in the signalchain. They may be used to do delays and resyncing, but not restricted to. So you can't say: "ooh, its 42ms of buffer. So its 42ms of delay for resync...".

It's just said that you can have internal or external effects and filters in your "global" audio chain, and - as long as the signal returns to obs before being encoded and muxed - you can accomodate by hand for the needed delays (either in the audio mixers advanced properties or having a "render delay" filter for video sources).
Your whole delay/difference should keep under 250ms and being constant over time, then you can compensate within obs like above said.
 
You must log in or register to reply here.
Back
Top