by bastard_son » Thu Dec 20, 2007 9:52 am
I don't think reason will ever be able to extract vocals, since it's a pretty heavy operation to do on a soundclip. It's not exactly related to making music. It's more like a reverse engineering procedure.
Like CelestialMind points out, it's not possible to extract a perfect vocal line from a song, but there are people out there trying to get as close as possible.
One of the tricks they use to avoid cutting the frequencies are to invert the phase of the music. This of course requires the song to have a part where the music without vocals is identical to the parts with vocals. You can also do something similar with a profile noise reduction effect.
Another trick is to separate the stereo field, because the vocal usually has it's own space. I remember reading about it, but I never tried it, and honestly; I have no idea where to begin on that. You need some good scientific tools to do that.
An interval in music is the distance from one piano to the next