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I have been trying out Power Karaoke but the vocal remover will not work.
There are no errors, it just doesn't appear to do anything. The processed song sounds the same as the original .
Am I doing something wrong? If not does anyone know where I can get "It's been a while" by staind with the lyrics removed? (not midi).

Vocal removal works on the assumption that the lead vocal is mixed equally
between both channels. Unfortunatelly this condition is not always met. But
you should be able to hear some difference -- the song should become a little
distorded. But it might be the case that the song ou are trying to devocal
simply cannot be devocalized.
I do not know where can you get the song you write about, but I would suggest
you asked your question at the Karaoke Playground forum
(http://www.karaokeplayground.co.uk) -- there is a lot of helpful and
knowledgeable people.