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Turn your body into an instrument with the Stompolin

Music

Mike Rotondo created an instrument using an Arduino, Max/MSP and some sensors for a Physical Interaction Design workshop at Stanford’s CCRMA. As he puts it: “When the guitar is too sexy and the piano makes too much sense, it’s time to stick a bunch of sensors to your body with electrical tape and plug it all into your computer!”

How it works:

There’s a small electret microphone attached to my foot, and two bend sensors on my arm: one in my elbow, and one on my finger. The signals from each of these are routed through an Arduino microcontroller into a Max/MSP patch.

The microphone output is routed through a percussion follower, and impulses (like stomps) trigger the instrument’s tone generation. The sound of the instrument is created by a a plucked string model and some ADSR’d harmonized sine waves. If the impulse picked up by the mic is heavy in high frequencies, the sound is captured and “granulated” around a bit at a random interval.

Stompolin

2 thoughts on “Turn your body into an instrument with the Stompolin

  1. Anon says:

    Little drunk there buddy?

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Gareth Branwyn is a freelance writer and the former Editorial Director of Maker Media. He is the author or editor of over a dozen books on technology, DIY, and geek culture. He is currently a contributor to Boing Boing, Wink Books, and Wink Fun. And he has a new best-of writing collection and “lazy man’s memoir,” called Borg Like Me.

View more articles by Gareth Branwyn
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