Based on the generation of complex waveforms or noise coupled to one or more filters, subtractive synthesis concerns the reduction of these complex spectra. The most extreme case would be the reduction to a pure sine wave. (Source - Dictionnaire des arts médiatiques: http://www.dictionnairegram.org)
Bibliography: ZATTRA, Laura (2006b). La ’drammaturgia’ del suono elettronico nel Perseo e Andromeda di Salvatore Sciarrino
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