Sound manipulation – The Tetrafol
Built with the monome creators (Brian Crabtree and Kelli Cain) and LA research and experimentation center Machine Project, the Tetrafol is a custom, pyramidal sound device. The object warps Fol Chen’s music using gestural manipulation of playback, but can also use your own samples. And with open-source circuit and firmware, the project could be an opportunity to learn or to build your own creation.
Description:
The Tetrafol is a hand-held tangible electronic sound toy. Circuits enclosed by a wooden tetrahedron detect orientation and motion-gestures to modify the playback of a collection of Fol Chen’s micro-compositions, allowing the user to explore sound through physical manipulation.
The battery-powered device has its own internal speaker but can additionally be hooked up to a headphone or amplifier.
The circuit and firmware are based on open-source hardware and is itself published as open-source, allowing anyone interested to learn about its deepest inner-workings.

