Four channel synthesizer

Posted on Jul 5, 2012

This circuit will synthesize two rear channels for quadraphonic sound when fed with a stereo signal. The rear output for the left channel, is a combination of the left channel input 180 out of phase, added to a proportion of the right hand channel (also out of phase)

Four channel synthesizer
Click here to download the full size of the above Circuit.

The right hand rear output is obtained in a similar way.

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