samples of silence being added at the beginning, which causes the final audio to be roughly compared to the video. Context: Hybrid MP4
The interesting behavior involves how OBS handles packets with negative timestamps to ensure the stream starts at exactly zero. 648.mp4
: In this scenario, OBS "corrects" these packets to start the stream at packet is shifted to become the packet at the timestamp. Resulting Effect : This correction results in approximately samples of silence being added at the beginning,
The query "648.mp4" refers to a specific technical observation within the OBS Studio Hybrid MP4 Resulting Effect : This correction results in approximately
This feature is part of the OBS Studio "Hybrid MP4" format, which combines the benefits of (crash resilience) with standard MP4 (broad compatibility). It allows a recording to be saved as a fragmented file that is automatically "remuxed" into a standard MP4 once finalized. Writing an MP4 Muxer for Fun and Profit - OBS Studio
: When recording with Opus, the first packet might have a timestamp like -312negative 312 , while the subsequent packet is .
muxer development, where the muxer handles audio packet synchronization. Key Technical Feature