Colorsound Dipthonizer

The Colorsound Dipthonizer is a rare, envelope-controlled filter pedal from the British Colorsound line, producing a vowel-like, talking-bass diphthong sweep reminiscent of a slow, automatic wah. It reacts to pick attack, morphing the frequency response dynamically for an expressive, organic filter effect that sits somewhere between a standard envelope filter and a formant synthesizer.