AtoVproject cDVCA: Class-D based waveshaping, VCA and filter
cDVCA is a new kind of VCA based on concepts inspired by Class-D amplification technology. It brings in interesting waveshaping, a trackable VCA and a simple filter.
cDVCA
We caught our first glimpse of the cDVCA at Superbooth but now it’s available and we can all start wave shaping with twisted amplification technology.
The idea is that the input unexpectedly gets turned into an ultrasonic pulse-width-modulated signal. You then scale it with the VCA and filter it back to the original signal. Along the way, the PWM signal can be lowered into the audible range and controlled via a 1v/oct input. This pushes it into some crazy waveshaping where harmonics can be tuned.
Grab the Drive control to inject a weird clipping method that doesn’t actually reply on overdriving the circuit. This gives the distortion quite a distinct character.
Finally, the signal runs through a 1-pole VCF that shaves off some of the more aggressive harmonics.
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With nothing plugged in it can also become a bit of a simple synth voice. It oscillates, it amplifies and then filters – nice. It’s not often that someone comes up with a completely different way of doing things. You’d think the good old VCA has undoubtedly been done to death. But this module is a bit different and brings out interesting tones and cool ways of working within a nicely compact space.
cDVCA is available now for €225.
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