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Controlling a physical model with a 2D force matrix

Physical modeling has proven to be a successful method of synthesizing highly expressive sounds. However, providing deep methods of real time musical control remains a major challenge. In this paper we describe our work towards an instrument for percussion synthesis, in which a waveguide mesh is both excited and damped by a 2D matrix of forces from a sensor. By emulating a drum skin both as controller and sound generator, our instrument has reproduced some of the expressive qualities of hand drumming. Details of our implementation are discussed, as well as qualitative results and experience gleaned from live performances.