monolith

fm reverb

monolith is a pitch-shifter reverb inspired by west coast synthesis techniques. It utilizes a time-domain based FM algorithm that acts as a shimmer.

Inputs:

in l and in r - audio input, left will be converted to stereo if there is no right input
blend - knob and CV for controlling the fade between the dry and fm audio signals
dj filter - knob and CV for controlling the reverb delay line filtering
wet - knob and CV for controlling the reverb decay
mod - knob and CV for controlling the scale of FM modulation. low mod values correspond with microtonal pitch regions. high mod values correspond with multiple octave shifts.
on - button and CV gate for toggling on/off FM modulation. when FM modulation is turned on/off, the FM modulator oscillator is reset.
quant - button and CV gate for toggling on/off FM pitch quantization.
freq and v/oct - knob and CV for controlling the frequency of the FM modulator oscillator. also control reverb pre-delay.
shape - knob and CV for controlling FM modulator oscillator shape. shape wavetable transitions from sine wave (8 o’clock) to triangle wave (12 o’clock) to square wave (4 o’clock).
clock - CV gate for tempo syncing modulator oscillator period.

Outputs:

out l and out r - audio output
gate - CV gate out that is period synced with the FM modulator oscillator