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.)
Pitch-shifting
Transposition (Pitch-shifting)
Utilisation d'une fonction permettant d'altérer les hauteurs des sons et aussi, généralement, leur durée. La transposition sans ce dernier effet est liée au time-stretching. Dans certains appareils, cette fonction peut être contrôlée par des oscillateurs, par un dessin manuel ou même par l'enveloppe dynamique extraite du son lui-même ou d'un autre son. Le terme désigne uniquement un effet appliqué à des sons possédant une hauteur. Toutefois, cette technique peut aussi être appliquée à des sons non périodique, sans hauteur définie ou à un événement dans son ensemble. (Source - Rodolfo Caesar (1992). The Composition of Electroacoustic Music. Thèse de doctorat, Université d'East Anglia.)
Trasposizione di altezza (Pitch-shifting)
Applicazione di una funzione che altera l'altezza di un suono, spesso cambiandone anche la durata. La trasposizione in altezza senza questo effetto collaterale viene invece chiamata time-stretching (espansione temporale). In alcuni sistemi, la funzione può essere controllata da oscillatori, oppure disegnata manualmente, oppure tramite inviluppi dinamici estratti sal suono stesso o da altri suoni. Il termine indica solitamente l'effetto ottenuto su suoni ad altezza determinata, tuttavia può essere applicato anche a suoni non periodici, a suoni ad altezza indefinita o ad interi eventi sonori. (Fonte - Source - Rodolfo Caesar (1992). The Composition of Electroacoustic Music. PhD Thesis, University of East Anglia).
Höhen-Verschiebung
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.)
Pitch-shifting (Transposición)
La aplicación de una función para alterar las alturas de los sonidos, usualmente cambiando también su duración. La transposición o pitch-shifting sin este efecto secundario está relacionada con la expansión temporal o time-stretching. En algunos equipos esta función puede ser controlada con osciladores, "dibujando", o incluso mediante envolventes dinámicas extraídas del mismo u otro sonido. Esta expresión solo hace referencia al efecto sobre sonidos con altura definida, pero el proceso puede ser aplicado a sonidos de altura indefinida, aperiódicos, o a eventos completos.
(Fuente: Rodolfo Caesar (1992). The Composition of Electroacoustic Music. Tesis de doctorado, University of East Anglia)