Make sure you download a recent version of the program. In ffmpeg you can use the volume filter to change the volume of a track. Option 3: Manually normalizing audio with ffmpeg ![]() Have a look at ffmpeg-normalize -h for more options and check the README for some examples.Īlso, it supports re-encoding with other encoders (e.g., AAC or MP3), or automatic merging of the audio back into the video. The tool supports EBU R128 (default), RMS and peak. Or, to simply batch-normalize a number of audio files and write them as uncompressed WAV to an output folder: ffmpeg-normalize *.m4a -of /path/to/outputFolder -ext wav
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