Isolating vocals

[sp addict]

any techniques to isolate vocals from the original song? i know it's difficult to remove the instrumentation completely but it'd be awesome to get the vocals as clean as possible.

i know there are programs out there to achieve this, but my question is specifically aimed at doing this on the SP. any input or suggestions are much appreciated!

[hseiken]

Lifting an acapella involves inversing a waveform. Not possible on SP.