It's very convenient that ffmpeg can also handle audio manipulation too. Just modify the command below, We set the volume to 18.64db, so you can adjust to whatever you need. ffmpeg -i input.mp4 -filter:a "loudnorm=I=-18.64:TP=-1.5:LRA=11" -c:v copy output.mp4 output.mp4 will now be normalized to whatever do you specified above.........