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Murray Campbell and Mary Térey-Smith

The repetition of sound after a short time interval. In addition to the applications discussed below the term is used for a signal-processing device (also known as a delay) that produces a slightly delayed playback of sounds either by a tape loop or by digital delay; ...



Anne Beetem Acker

Computer designed by Chuck Pedal and Bill Mensch, both formerly engineers with the Motorola Corporation, and released by MOS Technology Corporation of Norristown, Pennsylvania, in 1976. It was next produced by Commodore Business Machines of Palo Alto, California, after they acquired MOS in 1977. It was originally intended as a training and development system for industrial applications. The TINY BASIC programming language could be run on the KIM-1 with extra memory, making programming far more accessible. Hence, the KIM-1 was the first microprocessor adopted by experimental composers and performers as an easier alternative to making their own custom circuitry. Jim Horton, an improvisational flutist and analogue synthesizer player, was perhaps the first to realize the musical potential of microprocessors. He purchased a KIM-1 in ...


Hugh Davies

An electronic instrument, usually incorporating a keyboard, capable of producing more complex sounds than other electronic instruments that directly imitate traditional acoustic equivalents. As yet no standard form has developed, since synthesizers are mostly used for performing rock music and jazz which is specially composed, arranged or improvised. Several stages can be observed in the evolution of the synthesizer, each seeing the demise of existing companies and the rapid growth of new ones. Some earlier electronic instruments that were called ‘synthesizer’, such as the RCA Electronic Music Synthesizer (...