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2. Audio time stretching and pitch scaling - Wikipedia

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

   The simplest way to change the duration or pitch of an audio recording is to change the playback speed. For a digital audio recording, this can be accomplished through sample rate conversion. When using this method, the frequencies in the recording are always scaled at the same ratio as the speed, transposing its perceived pitch up or down in ...

3. Pitch shifting - Wikipedia

   en.wikipedia.org/wiki/Pitch_shifting

   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 ...

4. Auto-Tune - Wikipedia

   en.wikipedia.org/wiki/Auto-Tune

   The processor slightly shifts pitches to the nearest true, correct semitone (to the exact pitch of the nearest note in traditional equal temperament). Auto-Tune can also be used as an effect to distort the human voice when pitch is raised or lowered significantly, [9] such that the voice is heard to leap from note to note stepwise, like a ...

5. Pitch correction - Wikipedia

   en.wikipedia.org/wiki/Pitch_correction

   Pitch correction devices do this without affecting other aspects of its sound. Pitch correction first detects the pitch of an audio signal (using a live pitch detection algorithm), then calculates the desired change and modifies the audio signal accordingly. The widest use of pitch corrector devices is in Western popular music on vocal lines.

6. Audacity (audio editor) - Wikipedia

   en.wikipedia.org/wiki/Audacity_(audio_editor)

   Audacity is a free and open-source digital audio editor and recording application software, available for Windows, macOS, Linux, and other Unix-like operating systems. [ 4 ] [ 5 ] As of December 6, 2022, Audacity is the most popular download at FossHub, [ 8 ] with over 114.2 million downloads since March 2015.

7. Voice changer - Wikipedia

   en.wikipedia.org/wiki/Voice_changer

   The term voice changer (also known as voice enhancer) refers to a device which can change the tone or pitch of or add distortion to the user's voice, or a combination and vary greatly in price and sophistication. A kazoo or a didgeridoo can be used as a makeshift voice changer, though it can be difficult to understand what the person is trying ...

8. MLB pitch clock proving to be a mental and physical game-changer

   www.aol.com/news/mlb-pitch-clock-proving-mental...

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9. Sample-rate conversion - Wikipedia

   en.wikipedia.org/wiki/Sample-rate_conversion

   For example, Compact Disc Digital Audio and Digital Audio Tape systems use different sampling rates, and American television, European television, and movies all use different frame rates. Sample-rate conversion prevents changes in speed and pitch that would otherwise occur when transferring recorded material between such systems.