vimsynth/modules/vca

modules/processors/VCA

VCA

An amplifier. cv controls the level, and NEGATIVE CV CLOSES IT rather than inverting — use RING for bipolar multiplication. Its cv normals to 1.0, so an UNPATCHED VCA passes audio at full: that is how you make a drone with no envelope.

The VCA card as vimsynth draws it: its title bar, 1 knobs, 2 inputs down the left edge and 1 outputs down the right
VCA on an empty rack — 32×12 cells, knobs at their defaults. Press a in the app and pick VCA to get this card.

inputs

Down the left edge of the card, top to bottom.

inaudio
The signal to amplify.
cvcv
The level. NORMALS TO 1.0 — an unpatched VCA passes audio at full, which is how you build a drone. Negative CV closes it; it does not invert.

outputs

Down the right edge, in the same order.

outaudio
The signal, at the level cv asked for.

knobs

Left to right across the face — the dials in the picture.

gain0 … 1= 1
Level, when nothing is patched into cv.

more

The full reference — every parameter curve, the patching notes and the worked examples — lives in the manual: docs.vimsynth.com/modules/vca. In the app itself, :help VCA opens the same page without leaving the rack.