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English definition

Attack, Decay, Sustain, Release: On a number of analogue and digital devices, these four parameters form the basis of an envelope generator. Attack = the duration from a zero to a maximum amplitude; Decay = the duration from the initial maximum amplitude to a stable state amplitude; Sustain = the level of the steady state amplitude; Release = the duration from the steady state to its final zero amplitude. (Source - Dictionnaire des arts médiatiques: http://www.dictionnairegram.org

Wednesday 16 February 2005, by Rob Weale