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Pitch shifters are included in most audio processors today. A harmonizer is a type of pitch shifter that combines the pitch-shifted signal with the original to create a two or more note harmony. The Eventide H910 Harmonizer, [2] released in 1975, was one of the first commercially available pitch-shifters and digital multi-effects units. On ...
Pitch scaling is the opposite: the process of changing the pitch without affecting the speed. Pitch shift is pitch scaling implemented in an effects unit and intended for live performance. Pitch control is a simpler process which affects pitch and speed simultaneously by slowing down or speeding up a recording.
The computer algorithm allows frequency-domain modifications to a digital sound file (typically time expansion/compression and pitch shifting). At the heart of the phase vocoder is the short-time Fourier transform (STFT), typically coded using fast Fourier transforms.
Pitchshifter was formed in 1989 (initially spelled Pitch Shifter) by guitarist and programmer Johnny Carter and bassist Mark Clayden, later joined by Stu Toolin, and then Jon "JS" Clayden (Mark Clayden's brother). [5] During this time, the band played with local bands and soon gained attention of the Peaceville Records. During this time, JS ...
A pitch shifter (also called an "octaver" for effects that shift pitch by an octave) raises or lowers (e.g. "transposes") each note a performer plays by a pre-set interval. For example, a pitch shifter set to increase the pitch by a fourth will raise each note four diatonic intervals above the notes actually
PSOLA (Pitch Synchronous Overlap and Add) is a digital signal processing technique used for speech processing and more specifically speech synthesis. It can be used to modify the pitch and duration of a speech signal. It was invented around 1986. [2] PSOLA works by dividing the speech waveform in small overlapping segments.
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The DigiTech Whammy is a pitch shifter pedal manufactured by DigiTech.It raises or lowers the pitch of an audio signal by up to two octaves, controlled with a treadle.The first model, released in 1989, was the first mass-market digital pitch shifter.
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