ffmpegHow to normalize audio volume
To normalize automatically, use awesome ffmpeg-normalize tool. In order to normalize with native ffmpeg, you first need to detect volume detect mean and max volumes and then increase/decrease volume based on those values:
ffmpeg -i in.mp3 -filter:a volumedetect -f null /dev/null
ffmpeg -i in.mp3 -filter:a "volume=10dB" out.mp3ctrl + c-i in.mp3input MP3 file | -filter:aapplies specified audio filter |
volumedetectdetect | volume=change volume level by specified amount |
10dBincrease volume by 10dB | out.mp3resulting file |
Usage example
ffmpeg -i in.mp3 -filter:a volumedetect -f null /dev/nulloutput
...
[Parsed_volumedetect...] mean_volume: -24.1 dB
[Parsed_volumedetect...] max_volume: -10.7 dB
...Related
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