Testing second CV input on VCF-1 Filter 

A second test video about the Thomas Henry VCF-1 State Variable filter.
I removed the Cutoff frequency fine control and instead I connected an extra CV input to the filter complete with level control potmeter. This opens up a whole world of possibilities for this filter. I connected a reasonably fast sinewave to the 2nd CV input which interferes nicely with the Envelope signal on the first CV input as you can hear.

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