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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.
Can FFmpeg Sync Audio And Video? Solved!
https://videoconverter.wondershare.com/sync-audio/ffmpeg-sync-audio-and-video.html
When audio is ahead of the video, the -async option, when provided as -async 1, automatically corrects the start of the audio stream. Follow this syntax to sync the audio with the video. ffmpeg -async 1 -i input.mpg <encoding options> 3. Manually Correcting Time-Shift
Audio Video Sync With ffmpeg - Stack Overflow
https://stackoverflow.com/questions/13902507/audio-video-sync-with-ffmpeg
ffmpeg -i input.avi -vn -ac 2 -ar 48000 -ab 448k -f mp3 audio.mp3. Then you need to divide the whole length of the video file (in seconds) by the actual length of the video stream (the time when the video stops and you can just hear the audio). You should get a number a little above 1 (1.12 or something like that).
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.
VOB editing with FFMPEG - Video Production Stack Exchange
https://video.stackexchange.com/questions/15690/vob-editing-with-ffmpeg
In the first step you are doing a lossy conversion, you transcode from vob to mp4, and then to ts. For a lossless re-mux you should just re-mux, better to specify both video and audio: ffmpeg -i VTS_01_1.VOB -c:v copy -c:a copy -bsf:v h264_mp4toannexb -f mpegts intermediate1.ts
ffmpeg audio/video manipulation - howto' pages
http://howto-pages.org/ffmpeg/
ffmpeg is a tool that, in its simplest form, implements a decoder and then an encoder, thus enabling the user to convert files from one container/codec combo to another, for example a VOB file from a DVD containing MPEG2 video and AC3 audio to an AVI file containing MPEG4 video and MP3 audio, or a QuickTime file containing SVQ3 video and MP3 audio to a …
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