“I didn’t realize that the effects for the track would remain even after deleting the track and adding a new one.”
They don’t. If you added effects to a track and then deleted the track, those effects are gone. If you added them to a track and then deleted the event(s) you had on that track (but kept the track), then the effects remain and will affect any events you add to that track.
My guess (if the above does not apply) is that either a) you added the effects at the project level or b) what you’re seeing are the default effects that are applied to every audio track (Track Noise Gate, Track FX, and Track Compressor). But the effect of these are minor, and I’ve never heard of them making audio sound like it’s coming from a cave. 😉
Rob