I know mGBA is made to emulate the console as close as possible, including it's shortcomings, but... I was wondering, since the clean audio does exist inside the game and can be accessed through unconventional means, can't the emulator play that instead? Or is that a game sided issue? Or does doing that require more effort than it's worth?
Anyway, just take a listen at this just in case you don't get what I mean.
Audio with fuzz
Crisp audio
Anyway, just take a listen at this just in case you don't get what I mean.
Audio with fuzz
Crisp audio