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2. Pitch shifting - Wikipedia

   en.wikipedia.org/wiki/Pitch_shifting

   Pitch shifter and harmonizer. A pitch shifter is a sound effects unit that raises or lowers the pitch of an audio signal by a preset interval. For example, a pitch shifter set to increase the pitch by a fourth will raise each note three diatonic intervals above the notes actually played. Simple pitch shifters raise or lower the pitch by one or ...

3. Audio time stretching and pitch scaling - Wikipedia

   en.wikipedia.org/wiki/Audio_time_stretching_and...

   Time stretching is the process of changing the speed or duration of an audio signal without affecting its pitch. 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 ...

4. DigiTech Whammy - Wikipedia

   en.wikipedia.org/wiki/DigiTech_Whammy

   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. The Whammy has a distinctive artificial sound, and Guitar World described it as one of the ...

5. Shepard tone - Wikipedia

   en.wikipedia.org/wiki/Shepard_tone

   Shepard tone. A spectrogram of ascending Shepard tones on a linear frequency scale. A Shepard tone, named after Roger Shepard, is a sound consisting of a superposition of sine waves separated by octaves. When played with the bass pitch of the tone moving upward or downward, it is referred to as the Shepard scale.

6. Pitchshifter - Wikipedia

   en.wikipedia.org/wiki/Pitchshifter

   Pitchshifter (originally Pitch Shifter) are an English industrial rock band from Nottingham, formed in 1989. The band was started by lead guitarist and programmer Johnny A. Carter, and bassist and vocalist Mark Clayden. [ 5 ] The band's early material was characterized for its gritty industrial metal sound with downtuned guitars and the use of ...

7. Effects unit - Wikipedia

   en.wikipedia.org/wiki/Effects_unit

   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

8. Delay (audio effect) - Wikipedia

   en.wikipedia.org/wiki/Delay_(audio_effect)

   Sound example of a plugin simulation of an analog delay (EHX Memory Man) with modulation and pitch shift on Amplitube 4. Steve Harris' Delayorama software. A natural development from digital delay-processing hardware was the appearance of software-based delay systems. In large part, this coincided with the popularity of audio editing software.

9. Chorus (audio effect) - Wikipedia

   en.wikipedia.org/wiki/Chorus_(audio_effect)

   Chorus (or chorusing, choruser or chorused effect) is an audio effect that occurs when individual sounds with approximately the same time, and very similar pitches, converge. While similar sounds coming from multiple sources can occur naturally, as in the case of a choir or string orchestra , it can also be simulated using an electronic effects ...