problems and problems

excuse me guys… from 2 days I am trying to create a acapella… trying the method of the reversal of phase.. unfortunately I have a problem with cubase that it reproduces me the rows that amount to one advanced speed to that normal school… and i don’t know the reason… therefore I cannot make the reversal of phase with cubase because KO… I possess an other software, Audition… the problem that I do not have the minimal idea of like making the reversal of phase… I have tried to try to understand something of the Knockout method but unfortunately I do not understand well English. for this reason now I am using the translator… I hope that someone to answer to my questions…. I have need help strongly…

thanks to everybody