The Bluetooth Radio Ball Interface (BRBI): A Wireless Interface for Music/Sound Control and Motion Sonification

The Bluetooth Radio Ball Interface (BRBI) is a wireless interface for motion tracking and sonification. The device is embedded in a palm sized foam ball. A 3-dimensional sensor with a Bluetooth module seated in the center of the ball transmits acceleration/tilt measurement data to a computer. Data is then converted into Open Sound Control messages for use with other applications. This paper presents the design concept and implementation of BRBI. Details of its hardware and data handling software are also discussed. Applications include gesture control in music performance as well as sonification of athletics.