Quote Originally Posted by djtayz View Post
I just tried it but the results are the same (as expected I think), unless you mean something different.
Combining Vocal Remover's instrumental and acapella tracks, then inverting it with the original should give you silence, that means no loss in quality

If you're referring to my last post (about the "bug"), I just wanted to say that when using shorter audio files the instrumental track adds back the vocals at the end, as supposed to having them removed completely, which I find odd
You can also check my Alison Krauss post. The inverted vocals track in it was from inverting DIY instrumental into the official mix.