WEB Signal 516
Air Theremin uses webcam hand tracking or phone gyroscope to play a browser theremin
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Air Theremin is a browser-based theremin instrument that accepts input from a webcam via hand tracking, a phone gyroscope via tilt, or a mouse as a fallback.
It demonstrates real-time hand tracking and gyroscope input used for continuous musical control directly in the browser, without plugins. The mouse fallback means the instrument remains usable even without sensors, lowering the barrier to entry.
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Hand tracking mode maps hand spread to volume, hand height to pitch, leaning back to darker tone, and palms together to silence.
Gyroscope mode maps left-right tilt to volume and forward-back tilt to pitch, with sound cutting when the marker leaves the frame.
The tool offers sine, triangle, warm, and reed wave types plus vibrato, tremolo, and echo effects, and includes recording and note-snap features.
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