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31st July 2016, 20:02
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Registered User
Join Date: Feb 2002
Location: Charlotte, NC USA
Posts: 1,984
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req: ffmpeg audio sync help
MP4
video: AVC MainL3.1 24000/1001 FPS audio: AAC 48.0 kHz sample rate, 1024 spf (46.875) FPS Audio runs longer than video. What arguments should be passed to FFMPEG to correct sync with the original streams? If that's not possible, which audio codec would give the most compitability and supports 40 hKz for a call like this? Code:
ffmpeg -i infile.mp4 -vcodec copy -acodec NEWCODEC -af aresample=resampler=soxr -ar 40000 outfile.mp4
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