RIS ID
36954
Abstract
This paper describes a novel method for composing and improvisation with real-time chaotic oscillators. Recently discovered algebraically simple nonlinear third-order differential equations are solved and acoustical descriptors relating to their frequency spectrums are determined according to the MPEG-7 specification. A second nonlinearity is then added to these equations: a real-time audio signal. Descriptive properties of the complex behaviour of these equations are then determined as a function odifference tones derived from a Just Intonation scale and the amplitude of the audio signal. By using only the real-time audio signal from live performer/s as an input the causal relationship between acoustic performance gestures and computer output, including any visual or performer-instruction output, is deterministic even if the chaotic behaviours are not.
Publication Details
Havryliv, M. "Composing for improvisation with chaotic oscillators." Proceedings of the 2010 Conference on New Interfaces for Musical Expression (NIME2010). Ed. K. Beilharz, A. Johnston, S. Ferguson & A. Yi-Chun Chen. 2010. 94-99.