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FFMPEG Fix Audio Sync – Uly.me
https://uly.me/ffmpeg-fix-audio-sync/#:~:text=If%20you%20have%20a%20video%20with%20audio%20sync,seconds.%20Output%20file%20has%20-fixed%20appended%20to%20it.
FFMPEG Fix Audio Sync – Uly.me
https://uly.me/ffmpeg-fix-audio-sync/
If you have a video with audio sync issues, you can easily fix it using ffmpeg. It takes 2 inputs: the filename and delay: 0.100 is 100 ms or 0.1 seconds. Output file has -fixed appended to it. It’s fast. Only takes 2-3 seconds to process a 1.5 hour recording. Here’s the script.
FFmpeg concat video and audio out of sync - Stack …
https://stackoverflow.com/questions/35416110/ffmpeg-concat-video-and-audio-out-of-sync
Joining multiple files using ffmpeg concat seems to result in a mismatch of the timestamps or offsets for the audio. I've tried with several videos and noticed the same problem for h.264 / MP4. Using concat and encoding the video seems to work fine. The audio stays in sync as ffmpeg does the full conversion calculations and seems to get everything right.
"Insufficient audio data or severe sync problem ...
https://forum.videohelp.com/threads/308349-Insufficient-audio-data-or-severe-sync-problem
Insufficient audio data or severe sync problem. [dvvideo @ 0x381324]Can't process DV frame #566. video:80859kB audio:4248kB global headers:0kB muxing overhead …
[SOLVED] ffmpeg audio/video sync issues
https://www.linuxquestions.org/questions/linux-software-2/ffmpeg-audio-video-sync-issues-4175481486/
The problem is the audio is out of sync right from the start (sound comes after the video). I can fix it temporarily using the -itsoffset option of ffmpeg, but after a while it just goes out of sync again. Tried writing to an mkv file instead of …
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