Sound: Lengthen (overlap-add)...
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A command to convert each selected Sound object into a longer new Sound object.
Settings
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Pitch floor (Hz)
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the minimum pitch used in the periodicity analysis. The standard value is 75 Hz. For the voice of a young child, set this to 150 Hz.The shortest voiceless interval in the decomposition is taken as 1.5 divided by minimum frequency.
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Pitch ceiling (Hz)
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the maximum pitch used in the periodicity analysis. The standard value is 600 Hz. For an adult male voice, set this to 300 Hz.
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Factor
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the factor with which the sound will be lengthened. The standard value is 1.5. If you take a value less than 1, the resulting sound will be shorter than the original. A value larger than 3 will not work.
Algorithm
overlap-add.
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