ffmpegHow to speed up audio 4x
Since atempo filter allows max 2x speed increase, we use multiple atempo filters to bypass that limit:
ffmpeg -i in.mp3 -filter:a "atempo=2.0,atempo=2.0" -vn out.mp3ctrl + c-i in.mp3input MP3 file | -filter:aapplies specified audio filter |
atempoallows to change speed of audio (allows values from | 2.0speeds up audio speed twice |
-vnskip video (process only audio) | out.mp3resulting file |
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