FFMPEG how to increase the volume of copied audio?

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Fri Oct 21 2022 10:20:05 GMT+0000 (Coordinated Universal Time)

Saved by @DominiqueGrys #sh

        ffmpeg -i C.mp4 -af volume=20dB -c:v libx265 C_high_volume.mp4

https://stackoverflow.com/questions/71186040/ffmpeg-how-to-increase-the-volume-of-copied-audio

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