SignalFunctionSet
Plugins for VCV Rack and the Critter & Guitari EYESY, desktop software for samplers and synths, and workshops on synthesis and sound design.
VCV Rack
Free, open-source modules for VCV Rack. Most also run on the 4ms MetaModule.
Chime
An eight-note resonating drone machine for VCV Rack, after a xylophone whose resonator tubes rotate beneath the bars. Each note blooms as its tube swings through centre.
Crystal
A 3D echo chamber for VCV Rack shaped like a real crystal. Stereo in, quad out, with sixteen crystal habits traced by ray casting and four listeners standing inside the shape.
Fill
A self-playing eight-channel drum machine for VCV Rack. 343 built-in pattern sets across three banks, pressure that builds and vents as fills, and a PHRASE control that sets the fill frequency.
Key
A quantizer for VCV Rack that takes its key from the patch. Read one Root and Scale and every module follows the same key change, with sub-scales, Scala import, and microtonal support.
Loom
An eight-string physical-model voice for VCV Rack. The strings share one bridge, so a struck string rings its neighbours, with a continuous hammer, pluck, bow, and wind exciter.
EYESY
Visual modes for the Critter & Guitari EYESY video synthesizer.
Image Trip
An EYESY video synth mode that transforms static images into flowing kaleidoscopic animations by stretching and repeating rows and columns of pixels.
String Vibrations
An EYESY video synth mode that renders incoming audio as a scrolling 3D field of vibrating strings. Each string shows the waveform at a different moment in time.
Cubicles
An EYESY video synth mode: a 3D wireframe cube matrix with depth-of-field effects that pulses with brightness and color highlights in response to audio.
Tempestuous
An EYESY video synth mode inspired by classic vector arcade games: fly through a 3D tunnel that warps and pulses in response to incoming audio.
Software
Desktop tools that make working with samplers and synths less painful.
SampleStack
A desktop sample manager for Eurorack and hardware samplers. Organize, browse, convert formats, and transfer sample libraries without the painful CLI workflow.
Eyesy Simulator
A native macOS and Windows simulator for the Critter & Guitari EYESY video synthesizer. Develop, test, and preview video synth modes without the hardware.
Workshops
Slide decks and materials from workshops on synthesis and sound design.
Intro to Synthesis
An interactive slide deck covering the fundamentals of subtractive synthesis: oscillators, filters, envelopes, LFOs, and the classic voice architecture.
Granular Synthesis Workshop
Workshop materials on granular synthesis: interactive timeline, curated mixtape, and historical notes from Fourier to Mutable Instruments. Run at Synth Library Portland.
Writing
Notes and essays on synth tool design, workflow, and the practice of building instruments.
What's new in 2.17 for VCV Rack
Release notes for the SignalFunctionSet 2.17 VCV Rack plugin: seven new modules, including the Loom and Slide string models, the Chime and Crystal resonators, the self-playing Fill drum machine, and the Key quantizer.
Nightly builds on GitHub
SignalFunctionSet now publishes nightly VCV Rack plugin builds on GitHub, rebuilt on every commit, for macOS, Windows, and Linux. Includes work-in-progress modules ahead of the VCV Library release.
What's new in 2.16
Release notes for SignalFunctionSet 2.16: six new modules including Arrange, Chance, Meter X, Cycle, Record, and Play, plus a shared-scale migration for Fugue.
What's new in 2.15
Release notes for SignalFunctionSet 2.15: two new DX7 modules, Operator and OP ENV, plus a gate-length overhaul across the sequencers.
Eight months building modules with Claude
Notes from eight months of building VCV Rack, MetaModule, and Disting NT modules with AI assistance.
Cheat Sheets
Quick references for the gear and platforms our modules run on.