Calculates the spectral flatness measure, in the same manner as FFTFlatness, but divides the spectrum into (adjacent, non-overlapping) subbands, so returns separate measures for the different subbands.
The parameter cutfreqs can only be specified on initialisation - they can't be modulated.
must be an array of frequencies. For example, to divide a 44100Hz signal into three subbands we might specify [ 5512, 11025 ] as the cutfreqs, giving subbands of 0-5512Hz, 5512-11025Hz, and 11025-22050Hz. (Frequencies above the Nyquist frequency are not included.)
#[flatness1, flatness2, ... flatnessN+1]
In this example we take a "flat" sound (white noise) and an "unflat" sound (a sawtooth wave) and mix them together bandwise using [PV_BinWipe]. With the spectrum divided into three bands you should be able to see the results.