This provide me with a balance between bass and the clarity of the voice.
I have made some changes to it.
EQ is purely subjective - depending on the wild variational quality of speakers, headphones, earphones.. And the quality of the audio. And whether your ears are bunged up with wax.
All credit goes to San_X form XDA developers
https://forum.xda-developers.com/showthread.php?t=2674303
Time to update it
All of this is irrelevant. Just use Autoeq for your Headphones/Headsets. It tries to achieve more Balanced as a target.
https://autoeq.app/ (User friendly)
https://github.com/jaakkopasanen/AutoEq (More in-depth and usage instructions)