I have two audios, one of which has an additional voice in it that I want to extract. I have tried noise reduction with the cleaner version as is suggested at https://manual.audacityteam.org/man/tutorial_vocal_removal_and_isolation.html. and I tried inverting the cleaner version as is suggested by Isolate the difference between two mostly-identical audio tracks?. Problem is, it seems that I can't exactly line up the two audios and I get this slightly off sounding copy. Is there a way to line up the two audios at the exact point of a common sound? I zoomed in as closely as I could and tried to eyeball it but it seems that I'm just a little off.