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With a phonograph, it's easy.
Simply wire one channel of the cartridge leads out of phase with respect to the other channel. Now, set your system's output to monaural rather than stereo. The vocal portion will be gone.
Why does this work? Since the vocal portion of most pop songs is monaural, the vocal information in the right channel and the vocal information in the left channel, now out-of-phase, will cancel each other. All that will be left is the instruments.
Piece of cake.
Last edited by twin58; 11-09-2009 at 10:14 PM.
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