I CAN SEPRAIT INSTROMENTES WITH MY TOOLZ!!!!!!1!!1!!11111!
Yikes, anger-generated typos there. Relax, bobbybobbob. You haven't separated anything. That leadbelly example is awful-sounding as is, because of the awful guitar artifacting smeared all over the vocals. BTW, there's nothing I hear there that couldn't be also accomplished to the same level of quality using the Audition editor.
Look, there is some potential use for what you're doing, sure. But don't go around strutting like a cock on the walk making inflated claims that you're using "forensic software" to "separate instruments" and that mixes can be unscrambled because "all the data is there" and all that, because it's all over-hype. And the last thig the Internet Thing needs is yet more over-hype.
You can listen to any of the separations the Abbey Road engineers did for The Beatles: Rock Band, they don't sound much better then mine.
While they do sound quite better than your example, and are passible for a toy, they still sound pretty awful and are certainly nothing to hold up as examples of recommended audio engineering unless you're making something for a toy.
It's not made for listening isolated, It's for remixing!!!! The audio blends: You can pan, eq without artifacts.
Without artifacts? That Leadbelly example is nothing BUT artifacts. And you don't have to listen to the tracks separately for that to be quite audibly obvious. And the problem is that any processing you do to the vocals once they are PARTIALLY isolated like that, you're going to be doing to those guitar artifacts also.
That's not to say that such processing cannot be helpful. I could probably do something to that Leadbelly vocal to make it sound somehow different without completely ruining the guitar, but that's mostly because in that aged recording everything sounds like crap to begin with.
But spectral editing is no different than multi-band or multi-dynamic processing in one important way; the better the quality of the original tracks, the less you should try to "fix" them because of a mistake in engineering choices, and the more you should just go back and re-engineer them. And the reason for than is because, regardless of your claims, it remains impossible to unscramble an egg to the point where you can affect the yolk without also affecting the white.
Again, what you're doing has it's uses, just like any other kind of artificial splitting of a signal to processes slices of it (all of which could also be applied to this situation with some limited success, BTW.) And perhaps you can potentially help somewhat in this situation - But my god, please don't over-sell it as something it most definitely is not.
G.
