How to specify the noise floor in FFmpeg's acompressor filter
问题 I've always used Audacity's Dynamic Range Compressor if I wanted to crank up the volume of an audio file. Today I was looking at whether I could do the same with FFmpeg's acompressor filter. I've found "how to user "compressor" with ffmpeg" and Gyan's answer, which was really helpful, but not satisfying enough. Right now I'm actually trying to mimic Audacity's procedure. If I understand the acompressor correctly, then I can't apply the makeup gain in one pass. So I need to do a volumedetect