MUSICAL SIGNALS FROM CHUA CIRCUIT

Chua's circuit can produce a very rich variety of signals that are bot h periodic and chaotic. We explore some classes of these attractors wi th respect to their auditory display and musical properties. We discus s the fast control of the circuit through a specially developed comput er-controlled electronic resistor and how chaotic control methods migh t be applied to optimally switch between different attractors. The Chu a circuit has parameter regions where noisy frequency and amplitude mo dulated sounds are generated, each of which is related to a certain tr ansition to chaos. We discovered a period-adding sequence of bassoon-l ike sounds that produces interesting almost harmonic pitch changes. Fi nally, we emphasize the importance of transient dynamics especially in the context of percussion-like sounds.