Tencent Music Tech Team

Aug 15, 2023 · Mobile Development

Audio‑Video Synchronization Techniques and ExoPlayer Implementation Details

The article explains audio‑video synchronization fundamentals, user tolerance limits, four sync strategies, and then details ExoPlayer’s audio‑master architecture—two clocks, media‑clock selection, frame‑dropping logic, and how to inject custom clocks—while also addressing Android AudioTrack jitter and work‑arounds.