Reference Entry

Composertron

Hugh Davies

in Oxford Music Online

Published in print December 2014 |
Published online February 2013 | e-ISBN: 9781561592630 | DOI: https://dx.doi.org/10.1093/gmo/9781561592630.article.L2232373

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[Compositron]

An electronic composition machine developed at the National Research Council of Canada in Ottawa from 1948 by Osmond (‘Ken’) Kendall (b Spain, 1909, of British parents), an electronics engineer at the National Film Board of Canada (NFBC). Basing his experiments on a simplified form of the optical film soundtrack and the idea of graphic sound, on which his colleague Norman McLaren was working, Kendall devised the Composertron, which employed a system for drawing sound-waveforms on a television screen with a grease pencil (probably the first use of this technique in a musical instrument); rhythm was ‘notated’ on a strip of film. The waveforms were scanned and this process controlled electronic oscillators; the resulting sounds were then recorded on magnetic tape. At the same time Kendall constructed a machine for speech synthesis using the same principle. Working models of both machines were assembled by the Canadian Marconi Co. in Montreal about ...

Reference Entry.  249 words. 

Subjects: Music Production Engineering ; Music

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