Reactable

Reactable is a tabletop tangible user interface allowing several performers to control the instrument simultaneously. By moving physical objects on the table surface, users can interact with one another (locally or remotely). Researched and developed by the “Interactive Sonic Systems” team at Universitat Pompeu Fabra in Barcelona Spain.

A video camera beneath the translucent table tracks the position and relationship between the objects and instant visual feedback is displayed by a projector.

Audiopad

Developed by James Patten and Ben Recht, the audiopad tracks the position of objects on a tabletop and converts the movement into sound. The display provides visual feedback for the performer and the audience. The system is based on an earlier device made by James Patten called SenseTable.