SSSP [Structured Sound Synthesis Project]
- Hugh Davies
- , revised by Anne Beetem Acker
[Structured Sound Synthesis Project]
Interactive computer-assisted music composition system, including a polyphonic digital synthesizer, developed by the Canadian composer and computer scientist William Buxton (b 10 March 1949) and others at the University of Toronto Dynamic Graphics Lab in 1977. Its basic 16-voice multiplexed digital oscillator was used in three different systems. In the SSSP Composition System (1978) it was controlled by a PDP 11/45 computer in a studio environment; material developed in this way (up to eight ‘scores’ simultaneously) could be performed in concerts with the SSSP Conduct System (1979), controlled by a portable LSI 11/2 microcomputer. Both systems included a visual display unit and a choice of inputting devices: a 61-note keyboard, an alphanumeric keyboard, and a special graphics tablet by means of which the operator could ‘draw’ on the screen. This very flexible system offered a choice of notations as well as the sophisticated facility of the tablet, and composers needed no previous programming experience to operate it. The tablet led to the development of a new live performance instrument, the SSSP Touch-Sensitive Drum (...