IMPOSSIBLE!!! There is no way to remove the background music from the voice, or the voice from the back ground background track. reason beeing that... Once a song is placed into a wav file or mp3 file all the tracks, voice and all, are merged together and are as one, it is now one ultimate track with all the instruments and voices placed together.
The only way that I could see this happenein is if the track was composed of nothing but bas as the instruments and the voice was a high picthed voice. then you could remove the back ground from the voice, only because the voice and bass are so far apart in range that they do not touch.
Hip-Hop at the raw cutten like a motherfukcen chainsaw
Dirty V.