StellarPad
The control surface. Drag to set the center of the orbit — the field flies around the point you pick.
One pad. A whole physics engine.
PULSAR sends your signal into real 3D orbit around the listener. You steer a chaos field with the StellarPad and the sound flies — close and far, fast and slow — following physical attractors instead of a boring sine LFO. Simple on the surface, a genuine motion engine underneath.
Motion
One knob for energy. Couples chaos, distance and Doppler through orbital mechanics — turn it up and the whole system comes alive.
Rate / Sync
Free-running, or locked to your host tempo — from whole bars to fast cycles.
Shape
Morph continuously between four attractors: Orbit → Pendulum → Lorenz → Rössler. From clean circles to deterministic chaos.
Smear
A comet tail. Schroeder diffusion in the feedback path smears the trajectory into space.
Width / In Phase
Real head-shadow stereo width. IN PHASE collapses to mono-safe in one click.
Movement you feel, backed by real acoustics.
No "3D" marketing. PULSAR uses the same psychoacoustics your ears use to locate sound in the real world.
Binaural engine (HRIR)
Convolution with head-related impulse responses places the sound outside your head — not just hard-panned left/right.
Head-shadow ILD
A spectral head-shadow — the level/filter difference between the ears — decorrelates L/R for width that stays mono-compatible.
Real Doppler, zero latency
Pitch emerges from modulating the propagation delay — no pitch-shifter, no latency. The fly-by is physics.
Deterministic chaos
Lorenz and Rössler attractors drive the path — erratic, never random, always musical.
Clip-safe
A zero-latency engine limiter keeps the output in check, so it never clips your master.
Measured, not guessed
Phase correlation tuned from +0.79 (natural) to −0.46 (ultra-wide); the mono-safe path is verified by measurement.
Formats: VST3 · AU
Systems: macOS · Windows
Build: Universal (Apple Silicon + Intel)
Engine: Zero-latency
License: AGPLv3 · open-source
PULSAR is free. And open.
PULSAR on its own, ready to go — the Mac installer (VST3 + AU, universal, macOS 11+) drops it straight into your plug-in folders: double-click, done. On Windows: VST3 (64-bit, 10+) as a ZIP.
Download PULSAR — Mac ↓
PULSAR — Windows ↓
Read the manual →
Technical sheet (PDF) ↓
Source on GitHub ↗
Want the whole catalog? All 7 in one installer ↓
Free and open-source (AGPLv3) · VST3 · AU · macOS universal · Windows (VST3)
First time — macOS: the installer is unsigned; if Gatekeeper blocks it, right-click → Open (macOS ≤ 14) or System Settings → Privacy & Security → "Open Anyway" (macOS 15+). Windows: unblock the ZIP before extracting, then copy the .vst3 folder to Program Files\Common Files\VST3.