Audio DSP effects build on Android system framework layer. This is a repository contains a pack of high quality DSP algorithms specialized for audio processing.
This doesn't appear to be possible using the legacy method, which just hooks everything or ThePBone's frontend. The best fix is probably just to set a modified ringtone with a low volume
I don't know if this is right place to ask, sorry. but I want to apply the settings just to ring and notification volumes and not for media.
I have issues with my GSI rom and I use this app to set minimum volume of ring volume because it's loud but I don't want my media volume be quiet.