Advanced performance instrument · VST3 / AU
FieldSynth
FieldSynth is a generative performance instrument for VST3/AU hosts, coming very soon to iOS. A field of generated moving particles and a cursor drive the engine — glide your cursor through it, hold a point, or let it wander on its own, and that motion becomes evolving melodic and rhythmic phrases in real time. Play it as a self-contained synth, or let it drive other instruments in your DAW over MIDI.
Three voices. One field.
2-3 interweaving and complementary voices shift tempo individually based on weighted tempo probabilities, so the rhythm is never one static pulse — it's layered and constantly evolving.
Particles drifting through the field and two independent Cursor A/B voices sound together, backed by a deep factory library of nearly 830 factory voices for a fast starting point on any voice slot. Key, scale, note range, filters, FX, and timing are all live-tweakable mid-performance, and a four-LFO modulation matrix lets the field continuously reshape its own sound.
Play it as a plucked string surface, an arpeggiator, a quantized rhythmic grid, a slow ambient texture, or a MIDI sketchpad that composes for whatever synth you point it at.
Engine & Sound
Built on JUCE for the plugin shell and Elementary Audio for the real-time synthesis engine — every voice can run FM or subtractive.
FM Synthesis
A carrier and modulator per voice — harmonicity sets their frequency ratio, mod index sets FM depth, and its own envelope shapes the modulator over time, from clean bells to harsh, glassy tones.
Subtractive Synthesis
Classic waveforms — sine, triangle, sawtooth, square — through a filter with cutoff and resonance, for warmer, more analog textures.
Particle & Cursor A/B
Particles carry one voice, and the cursor carries two independent slots (A/B) that can layer together or swap on triggers, LFO cycles, or chance.
~830 Factory Voices
A deep, tagged voice library to start from instead of a blank patch — browse by category and audition instantly before committing a voice to particles or cursor.
Deterministic Mode
Flip one switch and the same cursor move always produces the same note output — no dropped notes, no timing/velocity humanize, weighted grids lock to whatever division is active. Built for repeatable takes and A/B patch comparison.
Timing & Rhythm
Tempo & Cursor Sync
Lock note timing to the host tempo, to your own cursor movement, or to keyboard/MIDI input — each with its own quantize grid, independently.
Weighted Grids
Don't pick one division — mix several (1/8, 1/16, a dotted or triplet feel) with relative weights, and the grid resamples between them as you play instead of holding one fixed subdivision.
Scale-Aware Everything
Every mode, key, and custom note sequence maps directly onto field position — pitch is where you are, not a fixed piano-roll grid.
Arp Behaviors
Random-walk, locked-random, up/down, and thumb patterns drive how particles resolve into note order — closer to a living arpeggiator than a fixed step sequencer.
Modulation
Four-LFO Matrix
Route any of four LFOs (rate or grid-synced) to nearly any parameter — filter, pan, pitch, FX sends — so the field's own sound keeps evolving without you touching a knob.
X/Y Axis Mods
Map screen position itself to sound — cursor X and Y each independently driving filter, detune, velocity, brightness, and a dozen other targets.
Proximity Mods
Distance between the cursor and particles becomes its own modulation source — sound that tightens or opens up as particles cluster near or drift away from you.
Generation Mods
Shape how new particles are born — launch motion, spawn stagger, direction spread, octave bias — for control over the field's own visual and rhythmic character.
MIDI & Integration
MIDI Out
Mute FieldSynth's own audio and route particle/cursor notes out to other tracks, hardware, or a second instrument entirely — a live MIDI sketchpad, not just a synth.
Host Automation
Every musical parameter is exposed to your DAW's automation lanes — record a performance's evolving state, not just its audio.
Session Recall
Full patch state saves and restores with your DAW project — reopen a session days later and the field picks up exactly where you left it.
VST3 & AU
Native macOS and Windows builds, tested in Ableton, Logic, and Reaper — one instrument, not a browser wrapper.
See it in motion
A short look at the field itself — cursor movement becoming a live performance.
FieldSynth for iOS
The same instrument, native on iPhone and iPad — runs as an AUv3 inside AUM, Cubasis, GarageBand, and other hosts, or as its own standalone app. Currently in beta; the App Store release is next.
Get FieldSynth
A one-time purchase, no subscription — $29 for native VST3/AU/Standalone builds on macOS and Windows. Works in any VST3 host, includes the full manual.
30-day money-back guarantee, handled through Gumroad.