tsunami1701 2 Posted January 21 Share Posted January 21 Hi there, I have a movie with 2 audio tracks: italian and english. The italian track is out of sync but only when the movie is played in Emby; I tried to play the movie with VLC and other players and the track is on sync. Thanks! Davide These are the movie data: These are the stats for nerds for the italian track These are the nerd stats for the english track Link to comment Share on other sites More sharing options...
Luke 37256 Posted January 21 Share Posted January 21 Hi there, let's look at an example. Please attach the information requested in how to report a media playback issue. Thanks! Link to comment Share on other sites More sharing options...
tsunami1701 2 Posted January 22 Author Share Posted January 22 Hi there, here is the server log I've started to play the movie with the italian track (the one out of sync) on 2024-01-22 19:23 for about 3 minutes, then I've played the same movie from the beginning with the english track for 3 minutes and then again 3 minutes from the beginning with italian track and 3 minutes with the english track. I attach even the direct stream log but this is generated only when i play the movie with the english track. Thanks! embyserver.txtffmpeg-directstream-00a7e09e-1c5d-4c22-807d-669c11b86f77_1.txtffmpeg-directstream-00a7e09e-1c5d-4c22-807d-669c11b86f77_12.txt Link to comment Share on other sites More sharing options...
Luke 37256 Posted January 22 Share Posted January 22 Are you able to try Edge and see how that compares? Link to comment Share on other sites More sharing options...
visproduction 125 Posted January 22 Share Posted January 22 (edited) ffmpeg log shows on 44 Mhz aac codec English uses Timebase 1/48000, but the Italian audio is encoded at 48 Mhz aac and uses ffmpeg Timebase 1/90000. See: https://stackoverflow.com/questions/43333542/what-is-video-timescale-timebase-or-timestamp-in-ffmpeg/ This ffmpeg auto settings, different for 44.1Mhz vs. 48MHz audio, might be the cause of the sync issue after ffmpeg encoding. Edited January 22 by visproduction 1 Link to comment Share on other sites More sharing options...
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