bobbicodes/comp.ps1

Last active March 20, 2022 08:12

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Dynamic audio compression with ffmpeg in Powershell

Raw

ffmpeg -i 'in.mp4' -af acompressor=threshold=-30dB:ratio=20:makeup=10 -c:v copy out.mp4

Author

bobbicodes commented Mar 17, 2022 •

edited

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Example with mapping when needing to select specific streams (check info using ffprobe):

ffmpeg -i in.mkv -map 0:0 -map 0:1 -map 0:2 -af acompressor=threshold=-30dB:ratio=20:makeup=10 -c:v copy disco-finale-eng4.mkv

In the above case, the -map 0:0 -map 0:1 -map 0:2 was necessary for the subtitles to be included. I kinda can't watch Star Trek without subtitles.

Author

bobbicodes commented Mar 20, 2022

Using dynaudnorm:

ffmpeg -i in.mkv -map 0:0 -map 0:1 -map 0:2 -af "dynaudnorm=s=30:m=100:g=15" -c:v copy out.mkv

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