
Secret
firmwaregithub.com
Secret is alternate firmware for the Hermetic Modular Alchemy Lab that turns the module into a chaotic oscillator. It runs continuous strange-attractor systems as audio, among them Rössler, Lorenz, Chua, Duffing, Van der Pol and a driven pendulum, with pitch tracking from a V/oct input. A TAME control applies delayed feedback that settles each attractor onto one of its own periodic orbits, taking the sound from rough and noisy toward a clean tone; models with no orbit to find are left free. TUNE sets pitch, CHAOS sweeps each model's bifurcation parameter and CHAR its secondary parameter, with CV inputs for pitch, CHAOS and TAME. Two knobs shape a built-in envelope, one button selects the model, shown by LED color, and another switches between a drone and a gate-triggered envelope, where a new gate re-seeds the attractor only from silence. The attractor's X and Y signals come out as stereo audio and as a pair of CV outputs for viewing on an X/Y scope. On a few models the highest notes plateau because of processing limits.

