OUROBOROS

Overview

OUROBOROS captures whatever you feed it and sustains it forever, turning a single guitar chord, vocal phrase, or synth stab into an endless drone, pad, or evolving texture. Inspired by the Electro-Harmonix Superego synth engine, it ships with three switchable freeze engines: an 8-line FDN reverb network for organic, diffuse warmth; an additive resynthesis spectral engine (up to 128 sinusoidal partials with harmonic-aware capture) for pristine, synth-like sustains; and an 8-grain COLA granular freeze for textured clouds. Manual mode latches a freeze on command while Auto mode listens for onsets and freezes hands-free, and the Gliss control morphs Superego-style between captures for smooth chord-to-chord glides. A built-in multimode filter, stereo decorrelation, and independent dry/effect levels let it sit anywhere from subtle ambience to a full wall of sound.

18 parameters. Three engines. One infinite breath.

Features

• Triple Freeze Engine — Switch between an 8-line Hadamard FDN reverb (organic, pad-like warmth), additive spectral resynthesis (clean, synthetic partials), and an 8-grain granular freeze (textured clouds), each capturing the same input in its own voice.
• Additive Spectral Resynthesis — Extracts up to 128 sinusoidal partials via FFT peak-locking and iterative harmonic masking (up to 6 simultaneous pitches), then resynthesizes them as a per-sample oscillator bank for beat-free, artifact-free infinite sustain.
• Manual & Auto Freeze Modes — Latch a freeze by hand or let the built-in onset detector trigger captures automatically, with a dB-calibrated threshold for hands-free, playing-responsive textures.
• Superego-Style Gliss Morphing — Re-capture a new chord while frozen and partials glide from the old sound to the new, with morph speed from a ~60ms snap up to a slow 5-second drift.
• Layered Re-Capture — The Layer control sets how much old content persists under each new freeze, with RMS energy capping so stacking chords changes timbre without ever running away into feedback.
• Built-In Filter & Stereo Shaping — A bypassable LP/HP/BP filter with resonance plus a stereo width control and FDN decorrelation place the frozen signal in space, all balanced against an independent dry path.

What People Say

“I played one chord and walked away from the room — it was still singing twenty minutes later. The spectral engine on a vocal take is the closest thing I’ve found to bottling a moment.”

— Sable Quinn, ambient producer & sound designer