Wishart, Trevor

Until recently, the supremacy of pitch over other sound attributes prevailed in Western music theory. Time and timbre, for example, were considered to be of secondary importance. Today, however, this ideology is changing, and the tendency is now to consider that attributes such as pitch, time and timbre are all descriptors for the same phenomenon, but from different perspectives. For example, pitch may be considered as one aspect of the perception of timbre and timbre as one aspect of the perception of time. Pitch may, in turn, be considered as a quantifier to measure time. The music and theoretical work of composers such as Karlheinz Stockhausen, Pierre Schaeffer, Iannis Xenakis, Jean-Claude Risset, Horacio Vaggione, Trevor Wishart and Joi e Antunes have helped to emancipate the role of time and timbre in Western music (Stockhausen, 1959 Schaeffer, 1966 Xenakis, 1971 Risset, 1992 Vaggione, 1993 Wishart, 1985, 1994 Antunes, 1995). 

The Phase Vocoder system implemented by the composer Trevor Wishart and his collaborators at Composer s Desktop Project (CDP) in England is a classic example of additive res)mthesis. In order to operate the Phase Vocoder the musician first needs to define a number of parameters, including the envelope for the window, the size of the window and the overlap factor. 

The composer Trevor Wishart has developed a number of waveset distortion programs for the GDP package. There are two types of program in Wishart s kit programs that work on individual wavecycles and those that work on groups of wavecycles (that is, wavesets). Typical waveset distortion operations are ... 

I would like to express my gratitude to all contributors who have kindly provided the materials for the CD-ROM Richard Moore (University of California, San Diego), Robert Thompson (Georgia State University), Kenny McAlpine (University of Glasgow), Stephan Schmitt and Jake Mandell (Native Instruments), Nicolas Fournel (Synoptic), Karnataka Group, Dave Smith (Seer Systems), Aluizio Arcela (University of Brasilia), Xavier Rodet and Adrien Lefevre (Ircam), Trevor Wishart, Archer Endrich, Richard Dobson and Robert Fraser (CDP), Jacques Chareyron (University of Milan), Arun Chandra (University of Illinois),... 

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See also in sourсe #XX -- [ , ]

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