Radio drum gesture detection system using only sticks, antenna and computer with audio interface

We present the results of our ongoing project researching a tighter coupling between computer and performer. The audio-input radio drum is presented, a simplification of the original apparatus that provides superior latency and resolution. Different demodulation schemes for the amplitude modulated input signals are discussed. Techniques to analyze gesture data are outlined, including eestimation of parameters and detection of events. In the case of the latter, a statistical basis for making decisions in the presence of noise is presented. The algorithm used to detect when the audio-input radio drum has been hit is outlined.