Sound Production and Manipulation [SPM]  >  Sound Shaping  ]

The application of a function to alter the pitches of sounds, most commonly changing their duration as well. Pitch-shifting without this side-effect is related to time-stretching. In some machines this function can be controlled by oscillators, by hand-drawing or even by dynamic envelopes extracted from the sound itself or from other sounds. The expression designates only the effect on pitched sounds, but such a process can also be applied to non-periodic, non-pitched sounds or whole events. (Source - Rodolfo Caesar (1992). The Composition of Electroacoustic Music. PhD Thesis, University of East Anglia.)



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