forsitan modulare bulla
Rob Hordijk's Blippoo Box: two cross-modulating oscillators, two runglers and a twin-peak filter, between pattern and chaos.
forsitan modulare rete
Feedback integrator network: 8 nodes, random mixing matrix, self-oscillating chaos with per-node gain CVs.
forsitan modulare dræn
Drone synthesizer: two banks of 37 drone engines (dronecaster ports + hyf originals) played from fundamental (hz) and level (amp), with fading engine selection.
forsitan modulare scando
Scanned-synthesis oscillator: a vibrating mass-spring string scanned into an evolving wavetable.
Eternal Eclipse Elemental Revelator
Four-element wavetable synth voice — a pentagram of AIR, WATER, EARTH, and FIRE oscillators with elemental-ring cross-modulation, opposing-pair ring mod, SPIRIT chord mode, 72 daemon algorithms, ladder lowpass filter, and stereo delay/diffusion.
Coalescent Bunnies
Predator-prey oscillator: prey and predator chase each other a quarter cycle apart. Lotka-Volterra and Rosenzweig-MacArthur modes.
Coalescent Operon
Three-phase oscillator on the repressilator gene circuit: three genes repressing each other in a ring, ~120 degrees out of phase
SignalFunctionSet Operator
DX7-style 6-operator FM voice. Loads Yamaha DX7 .syx cartridges (or your own banks exported from Dexed), selects a voice, and plays it polyphonically. Built on the msfa FM engine.
Coalescent Neuron · Soma
Bursting/chaotic neuron oscillator on the Hindmarsh-Rose system: spike trains, bursts, and chaos from one current control
Coalescent Neuron · Axon
Spiking-neuron oscillator on the FitzHugh-Nagumo system: relaxation oscillator + excitable (trigger-fired) voice
Ambivalent Instruments Crackl
Inspired by "Velvet Sunset" by manual, this small noise generator adds a touch of warmth and melancholy behind beautiful harmonies. With its delicate texture and understated presence, it blends a sense of transience seamlessly into your music and performances.
Hormuz The Wave of Hormuz
Strait-shaping square wave oscillator — open the strait, tighten the jacket, ride the passage
SignalFunctionSet Intone
CHANT/FOF formant synthesis voice with vowel morphing, 5 formant cells, and dual excitation modes
SignalFunctionSet Overtone
Additive synthesis VCO with 8 individually-toggled harmonics, even/odd filter, binary mask CV, and waveform display
HetrickCV Phasor Wavetable
Phasor-driven wavetable oscillator. Load custom wavetables from WAV files. LFO mode for non-antialiased output, VCO mode with mipmap antialiasing for audio-rate use.
Venom Vlippoo Box +
Venom Chaos Boxes $40Venom Vlippoo Box $20
Digitial emulation of Rob Hordijk's Blippoo Box with additional controls, inputs, and outputs. Included with purchase of Vlippoo Box
FilterLow-frequency oscillatorOscillatorRandomSequencerSynth voice
Venom Vlippoo Box
Venom Chaos Boxes $40Venom Vlippoo Box $20
Digitial emulation of Rob Hordijk's Blippoo Box 2018 version
FilterLow-frequency oscillatorOscillatorRandomSequencerSynth voice
Venom Venjolin +
Venom Chaos Boxes $40Venom Venjolin $15
Digitial emulation of the After Later Audio Benjolin V2 plus twin peaks resonator and other enhancements. Included with purchase of Venjolin
FilterLow-frequency oscillatorOscillatorRandomSequencerSynth voice
Venom Venjolin
Venom Chaos Boxes $40Venom Venjolin $15
Digitial emulation of the After Later Audio Benjolin V2 plus enhancements
FilterLow-frequency oscillatorOscillatorRandomSequencerSynth voice
Venom Hybrid Knot
Venom Chaos Boxes $40Venom Hybrid Knot $15
Digitial emulation of the Lorre Mill Double Knot synthesizer incorporating elements of both versions 2 and 3
Envelope generatorLogicLow-frequency oscillatorOscillatorRandomSequencerSynth voiceVoltage-controlled amplifier
Ambivalent Instruments NØ!SE//ERR
A dual-output noise oscillator that travels seamlessly between calm and agitation, harmony and dissonance.
Voxglitch Circuit Bender
TMS5220 style speech synthesizer with circuit bending
SignalFunctionSet GSX
Granular synthesis module based on Barry Truax's GSX system (1985-86), with real-time control over temporal, spectral, and spatial parameters
VCV Library Instructions
- Download and install VCV Rack.
- Register for a VCV account and log in using Rack’s “Library” menu.
- Add or purchase a module on the VCV Library.
- Open the “Library” menu in Rack, click “Update all” (if updates are needed), and restart Rack once downloaded.
- Right-click an empty rack space to launch Rack’s module browser to add a module to your patch.
All plugins on the VCV Library are available for Windows, Mac, and Linux.
The “major” version (i.e. MAJOR.MINOR.REVISION) must match between Rack and its plugins.
For example, Rack 2.* can only load 2.* plugins.
Missing or incorrect information in this database, such as a missing tag? Inform the plugin author(s) using the contact information on their plugin/module page.
Developers: see Adding your plugin to the VCV Library.
Notes
Purchasing plugins with the “VCV” brand supports the VCV Rack project. See VCV’s Mission Statement to learn how VCV Rack development is funded.
Prices are in US Dollars.
By purchasing a plugin on the VCV Library, you agree to VCV’s End User License Agreement and Refund Policy.
Contact VCV Support for customer support and questions about the VCV Library.

















































