TIL: I can enhance sound recording on Linux PC with PulseEffects. Fedora Magazine has a whole article on this including tips on various effects:
https://fedoramagazine.org/tune-up-your-sound-with-pulseeffects-microphones/
Paul W. Frields (fedoramagazine.org)The PulseEffects app is a full-featured set of modular effects you can use to adjust sound devices.