The envelope can be sent to pitch or any of the four tone controls (Morph, Fold, Mod, Damp) with positive or negative depth.

Use Trigger mode for percussive hits, Loop mode for LFO-style cycling, or Free mode to bypass the internal VCA for continuous drones. Rack Extension Exclusives Noise Engineering : Reason: From Eurorack to Your Rack.

A two-oscillator phase modulation algorithm that creates classic FM-style tones. Integrated Modulation Matrix

The standout feature of the Percido version is its , which allows the built-in envelope to be routed to various parameters:

A highly modified version of James Moorer's summation synthesis, designed to generate a wide variety of musical spectra with just a few parameters.