shape, for example changing the response of an envelope from an AD
shape to an AHD shape. Unlike overdriving audio using a VCA that has
gain greater than unity, this doesn’t result in unpleasant distortion of
your signal and can be used in interesting creative ways in combination
with the Skew controls, to get two different envelope shapes from a
single envelope.
The Gain CV Amount adds to (or subtracts from) the Gain control.
Skew
Skew controls the amount of CV from the Gain and Gain CV controls to
the audio VCAs. At its most basic level this can be thought of similarly
to a pan or balance control, as it will skew the level of the stereo signal
to the left or the right. With Skew positioned at 12 O’Clock the stereo
image is evenly balanced between left and right, moving
counterclockwise increases the left level and decreases the right, and
vice versa.
Skew CV Amount
The Skew CV Amount control is an attenuvertor which adds or
subtracts the CV present at the Skew CV input to the Skew control. As
an attenuvertor the amount is zero when the control is at 12 O’Clock,
increasing as the control is turned clockwise and increasing an inverted
voltage as the control is moved counterclockwise.
The Skew CV can be used at a basic level as a voltage controlled
balance or pan, at any rate from DC all the way to audio rates, as the
control is 100% analogue. However there are more advanced uses also.
As mentioned in the Gain section above, the choice of VCAs used in the
design of Vertex allows the CV amount to be clipped at unity gain,
which means the Skew controls can dynamically alter the shape of an
envelope stronger than 5V patched to the Gain CV input. This allows
you to skew the stereo image of your signal not by increasing the
