Resynthesizing Stompbox

Sunsine Audio releases the Harmonic Decoder      25/04/14

Sunsine Audio tells us that their Harmonic Decoder, previously seen in a teaser video a couple of weeks back, can sound like a fuzz, an octave/harmony pedal, a filter/wah, a complex waveshaper or some crazy bent 8 bit glitch box. All of its 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 which effectively resynthesizes any signal delivered at the input, providing extreme waveshaping and harmonic effects in the analog domain.

The frequency of the VCO can be modulated either by the internal envelope follower or via the external control voltage input.


  • Phase Lock Loop (PLL) Device
  • Analog VCO
  • Envelope Follower
  • External Control Voltage Input (1/8 inch)
  • Accepts any 2.1mm 9 Volt Negative Pin DC Adapter (not included)
  • High Quality Components
  • Rugged Aluminium Knobs and Enclosure
  • All Analog Signal Path
  • True Bypass
  • Numbered, Signed, Dated
  • One Year Electronics Warranty
  • Hand made in the USA


Pricing and Availability:

More information:


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