Harmonic Decoder

Single oscillator analog PLL synthesizer filter

The Harmonic Decoder can sound like a fuzz, an octave/harmony pedal, a filter/wah, a complex waveshaper or some crazy bent 8 bit glitch box but all of it’s effects are derived from an analog VCO, a phase detector, and a simple filter in an arrangement known as a Phase Lock Loop. At the heart of the Harmonic Decoder is a true single oscillator analog synthesizer. It effectively resynthesizes any signal delivered at the input, providing extreme waveshaping and harmonic effects in the analog domain.

http://www.sunsineaudio.com/product/harmonic-decoder