The FFmpeg utility on Linux is very useful for encoding to different file formats, but it can also be used to tweak audio files. The example below will increase the loudness of an audio track.
┌──[jason@192.168.1.2]─[~/Music] └──╼ ╼ $ ffmpeg -i Forest_Bg_Night_01.wav -c:a libvorbis -b:8 64k -af loudnorm=I=-16:LRA=11:TP=-1.0 forest.ogg |
This FFmpeg example I used to remove static noise from an audio file. This worked very well indeed.
┌──[jason@192.168.1.2]─[~/Music] └──╼ ╼ $ ffmpeg -i Forest_Bg_Night_01.wav -c:a libvorbis -b:8 64k -af "highpass=f=800, lowpass=f=1000" forest.ogg |
This shows that FFmpeg is a worthy alternative to Audacity, which has telemetry in it and is sending all of your data to unknown parties. So if you use that, you would need to use a firewall to block outgoing data from the program. Because the author cannot be trusted and he is adding god knows what to the code. But FFmpeg can do a lot of interesting things to improve your audio files. But this is all of the data collected by the Audacity application: https://www.audacityteam.org/about/desktop-privacy-notice/ is this even necessary? Say no to Audacity, or use a clean forked copy.