A command that creates a BarkSpectrogram object from every selected Sound object by band filtering in the frequency domain with a bank of filters.
The auditory filter functions used are defined as:
|10 log H(z) = 7 - 7.5 * (zc - z - 0.215) - 17.5 * √ (0.196 + (zc - z - 0.215)2)|
where zc is the central (resonance) frequency of the filter in Bark. The bandwidths of these filters are constant and equal 1 Bark.
The auditory filters are defined in Sekey & Hanson (1984). You can draw these filters from a BarkSpectrogram object by selecting BarkSpectrogram: Draw Sekey-Hanson auditory filters....
© djmw, October 23, 2014