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Casio SK-8 Phat Philter Bank |
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This is a circuit that I designed for the Casio SK-1, SK-5 and SK-8 sampling keyboards. It is a true polyphonic 4-voice VCF filter has frequency and resonance controls, as well as external CV input.
You can choose manual control cutoff frequency, or select "envelope" control, where the filter follows the attack/decay envelope of the sound selected. You can also select LFO control of the filter if you have the LFO mod installed. |
