Grizzly is a free stereo modulation effect plugin inspired by a classic effects pedal from 1979, the Gristleizer circuit, as used by Chris Carter of Throbbing Gristle.
It makes sound move in a pattern. You can run anything through it, a guitar, a voice, a synthesizer, or the whole mix. It will pulse, swell, or chop on a rhythm you control.
An internal LFO drives a modelled JFET stage in two modes: VCA, which controls the amplitude
of the signal, and VCF, which sweeps a lowpass filter across it.
Features
VCA mode: tremolo, rhythmic gating, choppy pulse effects, ringmod-adjacent tones above 20 Hz.
VCF mode: autowah, dub filter pulses, slow cutoff sweeps.
LFO waveforms: triangle, square, saw up, saw down.
Speed: 0.01 Hz – 60 Hz free, or host-synced 1/1 to 1/32 note divisions.
Shape control: slope asymmetry (triangle) / duty cycle (square).
Offset: controls what fraction of each LFO cycle drives the effect.
Bias: sets the resting position of the modulation (attenuation floor in VCA, base filter brightness in VCF).
Drive: −12 to +24 dB pre-gain modelling the original op-amp stage.
Spread: inter-channel LFO phase offset for stereo widening and auto-pan.
Level: output trim.
No presets, no menus.