I'm trying to a rip a music from youtube but it has voices in it. how do I remove the voices while keeping the music?

It actually depends on how the track is mixed... anyway:

http://www.softpedia.com/get/Multimedia/Audio/Other-AUDIO-Tools/YoGen-Vocal-Remover.shtml

Also, an important note:

Youtube audio quality is already shitty, convertin' in .mp3 from Youtube is even worse. Wait for the full OST or the original MP3.

If I'm guessing right, you're trying to rip Advent: One Winged Angel [ACC Version]... Well, I've already tried for fun to rip it from the Blu-Ray... but it has voices and SFX in it. Info on the OST Release, and eventually the OST itself will surf up.

It actually depends on how the track is mixed... anyway:

http://www.softpedia.com/get/Multimedia/Audio/Other-AUDIO-Tools/YoGen-Vocal-Remover.shtml

Also, an important note:

Youtube audio quality is already shitty, convertin' in .mp3 from Youtube is even worse. Wait for the full OST or the original MP3.

If I'm guessing right, you're trying to rip Advent: One Winged Angel [ACC Version]... Well, I've already tried to rip it from the Blu-Ray... but it has voices and SFX in it. Info on the OST Release, and eventually the OST itself will surf up.
you guess right but I'm only doing this because you still won't give the ost and I refuse to wait.