If you play Resident Evil 3: Nemesis on GOG, do not skip the DinoBytes fix. Your ears—and your survival horror experience—will thank you. Just remember: no matter how clean the audio, Nemesis will still find you.
Root causes (common)
Vanilla GOG RE3 was unplayable for long sessions. You would lose progress right before the Nemesis fight in the Restaurant. The solution wasn't coming from GOG support fast enough; it came from a modder known as resident evil 3 gog versiondinobytes fix