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Wing Pinger by Meng Qi

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Estimated stock date 2 Dec 2020

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The Wing Pinger is an analog musical instrument, centered around a pair of 4-pole resonate low pass filters. Despite the absence of oscillators, it's fully capable, and actually designed to generate sound on its own.

Wing Pinger exploits the idea of filter pinging (the operation of using narrow pulses as filter input). With Q near self-oscillation it makes naturally decaying tones of various lengths, assembling sounds from percussions to plucking. A special Q compensation is implemented, to balance pinging behaviors at different pitches.

Essential controls unveil the complex synthesizer patch hidden within, respond musically to your playing. Control layout is in symmetric, follows natural hand position with comfortable spacing. All control components are of light action and silky smooth. As the signals from filters generate pulses and modulations, the Q controls become playful and interactive.

With multiple feedback and cross modulation paths, Wing Pinger operates according to the principles of chaos theory. All parameters except volume are interactive, future outputs are related to the current state as well as parameter settings.

Be chaotic at will, you don't miss the expressions from melodies. Wing Pinger is capable of generating pentatonic patterns from its carefully weighted STEP modulation. With practice, you can play noise or melody at will.

Process stereo or dual mono signals through the filters, add spice to the tone, generate movements with special Wing Pinger modulations.

Wing Pinger talks to modular synthesizers via Banana jacks. Use TRIGGER outputs to sync external synthesizers to filter pings. STEP outputs are weighted mixes from shift registers.


  • based on a pair of 4-pole resonate lowpass filters surrounded by a network of comparators, pulse converters, binary counters, and shift registers