Background Music is an audio utility to automatically pause your music, set volume for individual apps, and record system audio.
Features
Automatically pauses your music player when other audio starts playing and unpauses it afterwards
Per-application volume, boost quiet apps
Record system audio
No restart required to install
Runs entirely in userspace
What’s new in version 0.3.2
Updated on Nov 18 2019
Version 0.3.2:
Fixed the Background Music audio device not being loaded immediately after installation on macOS Catalina. (The installer now tries an additional method of restarting coreaudiod so it will load BGMDriver)
Love this app! Simple and easy to use, does everything I needed it to and even helped me with quiet movie files on my old MacBook. In comparison to similar apps costing over 50$, this is stellar. I use it with XCode 12.4 on Catalina. Go to the GitHub if there are any problems; the explanation there is straight forward.