Viper's Audio
I finally upgraded to LOS 17.1, everything is working great for me!
Here is how to get Viper's Audio working:
- Install Terminal Emulator, run "su", then run "pm disable org.lineageos.audiofx"
- Install Selinux Switch 7.1.3 from XDA labs, set PERMISSIVE
- Install Audio Modification Library 3.4 from Magisk, do not reboot
- Install Viper's Audio 2.7 APK from XDA Labs
- Run Viper's Audio, install driver, reboot
- Play an audio file
- Enable Viper's Audio for your output device, check the driver status, should be running and processing
- Set Selinux back to ENFORCING
Many many thanks to LuK1337 and the other devs!!!
(Edit - need to run Selinux Switch while doing this, but you can leave it enforcing once you are done...)