A highly modified version of James Moorer's summation synthesis, designed to generate a wide variety of musical spectra with just a few parameters.
The envelope can be sent to pitch or any of the four tone controls (Morph, Fold, Mod, Damp) with positive or negative depth.
The standout feature of the Percido version is its , which allows the built-in envelope to be routed to various parameters:
A classic algorithm that uses two oscillators to create complex, vocal-like formants.