The d-touch sequencer and the d-touch drum machine are tangible instruments that you can print from your Mac or PC and then play.

About D-Touch Instruments

The audio d-touch interactive surface consists of a simple printed piece of paper. The movable physical objects are marked using labels, also printed on normal paper. The computer observes the blocks and the paper through a low cost web-cam, and thanks to the d-touch marker recognition algorithm it can localize them precisely. The information about the position and orientation of each block is used to control a digital audio synthesis process. The system was designed to be extremely low cost, robust and easy to set up, which makes it possible to fully and freely release it for download.

he instruments are fully and freely available for download (Registration needed).

Audio d-touch is a collection of applications for real-time musical composition and performance, with very special user interfaces. The collection includes a drum machine and a sampling sequencer, both are controlled by spatially arranging physical objects on an interactive table surface. Each object represents a sound, and its position with respect to the surface is mapped to certain playback parameters. For example, the horizontal position of an object represents the timing of the sound.

All is needed to get audio d-touch to work is a standard computer (PC or Mac) with a webcam and a printer.