I had one on my pc for a long time where you could set audio levels on a equalizer, remove the vocal, and even sift the pitch up or down from 1 to 4 pitches higher. But after my pc crashed and was fixed, it was gone. I tried updating the video driver which seems to share part of the auido driver or something and that didn't work. I don't remember the name of the program and every attempt to search for something similar doesn't give me what I want.