Tune up your sound with PulseEffects: Microphones by Paul W. FrieldsPaul W. Frields (fedoramagazine.org)
The PulseEffects app is a full-featured set of modular effects you can use to adjust sound devices.

TIL: I can enhance sound recording on Linux PC with PulseEffects. Fedora Magazine has a whole article on this including tips on various effects: