I wonder if @aaronpk would know what’s up

I’m assuming this is about audio being out of sync on the USB webcam output of the ATEM? My troubleshooting tips: • Use a short USB-C cord direct from the ATEM to the computer • Some slower CPUs just don’t work well • Contact blackmagic support if all else fails

I should also ask, is your audio coming from the camera or from the 1/8” jack on the ATEM? The camera’s HDMI feed will always be delayed, and you can tweak up to 8 frames of delay in the ATEM itself to compensate.

aha, I would’t trust the computer to be able to bring the two in sync, it’ll be more reliable to run the audio into the ATEM, then you ensure the audio and video are in sync before they reach the computer. (In case it’s not clear, I don’t trust computers for anything realtime)