What it is

Runs in the background.

Main Dirac service.

Audio fidelity improvement from the Swedish company Dirac.

Attempts to achieve a flat frequency response curve(i.e: fidelity). Should mainly improve speaker fidelity as it can be pre-calculated and stored as a corrective EQ curve, something not possible for most devices connected through the 3.5mm jack; presets only exist for a very limited number of headphones. Change for non-preset 3.5mm jack devices is just a generic EQ curve that could decrease fidelity just as likely as it could increase it.

Commands

adb shell pm uninstall --user 0 com.oneplus.dirac.simplemanager

To put it back:

adb shell cmd package install-existing com.oneplus.dirac.simplemanager

Every removal listed here is per-user only: the system image is untouched, and the restore command puts the app back from the copy already on the device. Nothing is downloaded.

This is not the directory. Here we say what a package is in general; what happens on your particular television is on your model's entry, and that one wins. The same package can be dead weight on one set and hold the home screen up on another.