cscs
6
The information was not useless .. it was just provided by accident.
Your sound server is not pulseaudio .. it is pipewire.
You should ditch whatever you have been trying to do and investigate pipewire post-audio processing or equalizers.
You probably want easyeffects.
Theres also some guides on here about it somewhere ..
(note I cant attest to those .. but they should give you an idea of how to do the things)