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The WILLPOWER Theremin
Audiovisual Instrument
How It Was Created.
Open Source Documentation




creative coding / openFrameworks / electronics / music tech

I performed using my Audiovisual Instrument the Willpower Theremin at Spektrum Berlin as a part of MOVLAB #28.



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As you can see in the video below, I then invited the public to play with the Willpower Theremin ๐Ÿ–๐Ÿป๐Ÿ–๐Ÿฟ
It was joyful to see the people having fun with it ! ๐ŸคŸ๐Ÿพ๐Ÿ”Š




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The original Theremin is an electronic musical instrument controlled without physical contact. It was invented by Lรฉon Theremin of Russia who patented it in 1928. I created my version by adding a visual component amongst other differencesโ€ฆ I coded the Sound and Visuals in openFrameworks, an open-source C++ frameworkโ€ฆ used 2 infrared sensors via Arduino to capture the distance of my hands in mid air to control amplitude and frequency of the Oscillator (Sound) while mapping them to a x/y axis for the visuals to be animated symbiotically with the audio, via hands in motion โœ‹๐Ÿ˜ธ๐Ÿคš. The purpose is to create Music + Graphics with the natural movements of the human body.โ€ โ˜บ๏ธ๐ŸŽผ๐ŸŽจ๐Ÿ”Š๐Ÿ‘ฉ๐Ÿฝโ€๐ŸŽค๐Ÿ–ค





The video above is the first audiovisual version of The Willpower Theremin but the low frequencies were not working correctly yet. It uses 2 infrared distance sensors to read my hands and I use the data to control the oscillator synth. There are 2 sensors. 1 is for the amplitude of sound and y-axis of the visuals. The other for frequency and the x-axis of the circle.



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The Hardware is still in prototype mode here in the image below.






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The Willpower Theremin V1 ๐Ÿ”Š

Finally got a first version of the theremin going ๐Ÿ™Œ๐Ÿฟ Using an ultrasound ( sound frequency)and infrared (sound amplitude)sensors to detect distance, allowing me to move freely in space to produce sounds.
The bass is crazy with a low frequency of 20hz but cannot be heard through the ๐Ÿ’ป Coded the Software in oF, using Arduino Micro as a microcontroller This is fun ๐Ÿคธ๐Ÿฟโ€โ™‚๏ธ

The very first one. Using an ultrasound sensor to trigger sounds based on linear hand movements.





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The very first tests... Using an ultrasound sensor to trigger sounds based on linear hand movements.