Hi, when attending a video-conference (zoom or jitsi) with the OBS Studio virtual cam I always have a delay between sound and video. If I use the integrated camera instead of OBS I don't have the problem. With OBS Sound is faster. So I choose the Audio-Mixer - Microphon - Advanced Audio Settings und set the Synchronisation-Adjustment for the microphone to 1000 ms. But it does'nt help, it is still the same delay.