Abstract

It is well known that Chua's circuit can exhibit numerous bifurcation phenomena and attractors by tuning one or more circuit parameters. These properties can be used to synthesize sounds with complex frequency spectra for musical purposes. Investigations of Chua's circuit for sound synthesis and music composition have produced specifications for tuning multiple circuit parameters to obtain specific classes of sounds. This paper presents a multiple control of Chua's circuit in which each parameter of the circuit can be varied by an external control voltage. The design of the subcircuits and the experimental results are shown. Programmable computer software was designed to provide fast multiple-parameter control of the analog Chua's circuit for use in music composition and live performance. The basic circuit discussed in this paper appeared in a series of live music performances at Expo '93, Seoul, Korea.

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