A command to create an Intensity object from every selected Sound.
Settings
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Pitch floor (Hz)
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the minimum periodicity frequency in your signal. If you set it too high, you will end up with a pitch-synchronous intensity modulation. If you set it too low, your intensity contour may appear smeared, so you should set it as high as allowed by the signal if you want a sharp contour.
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Time step (s)
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the time step of the resulting intensity contour. If you set it to zero, the time step is computed as one quarter of the effective window length, i.e. as 0.8 / pitchFloor.
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Subtract mean
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See Intro 6.2. Configuring the intensity contour.
Algorithm
The values in the sound are first squared, then convolved with a Gaussian analysis window (Kaiser-20; sidelobes below -190 dB). The effective duration of this analysis window is 3.2 / pitchFloor, which will guarantee that a periodic signal is analysed as having a pitch-synchronous intensity ripple not greater than 0.00001 dB.
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