how to remove vocals

i dont know how to form my question i want to remove the vocals of the singer in order to get a minus one, i'd tried vocal remove in AA3 it work but not 100% removed.  is their any means to do so pls. help

The ability for software to "remove" vocals is limited, and VERY dependent on the material.  Some recordings won't de-vocal at all, and others can be done quite completely.  If there is reverb in the recording, that will likely remain after the voco-suction operation is complete.

Chances are, there is not much that can be done to help your track.

http://audiomastersforum.net/amforum/index.php/topic,5353.msg53919.html#msg53919

Things that make a vocal difficult to remove are: Panning, multitracked vocals, and as stated above reverb, or any other phase differential effects.

The software relies upon the vocal being mono and equal on both channels, Left and Right.

The software relies upon the vocal being mono and equal on both channels, Left and Right.

Actually, it doesn't. You can select the position in the soundfield that you want to attempt to neutralize - it doesn't have to be dead centre at all.