Pitch shifter (audio processor)
- Pitch shifter (audio processor)
A pitch shifter is an audio processor that changes the pitch of an audio signal. Originally marketed by Eventide as the Harmonizer effects processor, advances in
digital signal processor s soon made higher-quality pitch shifting and harmonic pitch shifting possible.Since the mid-1990s,
formant correction has been available to avoid the "chipmunk voice" effect that typically occurs when shifting vocal pitch upwards. Pitch shifters are included in mostmulti-effect generator s today.During the late 1990s and early 2000s, pitch shifting has had enormous influence on recorded music. Among several others, specialized DSP (Digital Signal Processing) software such as Antares' "
Auto-Tune ", Celemony's "Melodyne " and Prosoniq's "TimeFactory " has given producers of contemporary music the ability to ensure their recordings have no unwanted intonation inaccuracies.A
Grindcore sub genre,goregrind , utilizes the pitch shifter effect to tune down the vocals (usually screams or sometimes growls) to produce a vocal sound reminiscent of the low pitched growls and yells ofZombies fromsplatter films .ee also
*
Timestretching
*Audio timescale-pitch modification
*Pitch shift
*Short-time Fourier transform
*Digitech Whammy External links
* [http://www.dspdimension.com/admin/time-pitch-overview/ Time Stretching And Pitch Shifting of Audio Signals] by Stephan M. Bernsee
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