THE AUDITORY MODELING TOOLBOX

Applies to version: 0.9.9

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baumgartner2014_gradientextraction - - Extraction of positive spectral gradients

Usage

[gp,gfc] = baumgartner2014_gradientextraction(mp,fc)

Input parameters

mp spectral magnitude profile in dB
fc center frequencies

Output parameters

gp positive spectral gradient profile
gfc center frequencies of gradient profile

baumgartner2014_gradientextraction(...) is a spectral cue extractor
inspired by functionality of dorsal cochlear nucleus in cats.

baumgartner2014_gradientextraction accepts the following optional parameters:

'c2',c2 Inhibitory coupling between type II mpd type IV neurons. Default is 1.
'c4',c4 Inhibitory coupling between AN and type IV neuron. Default is 1.
'spacing',sp Tonotopical spacing between type IV mpd II neurons in ERBs. Default is 1 ERB.

baumgartner2014_gradientextraction accepts the following flags:

'positive' Perform positive spectral gradient extraction (default).
'negative' Perform negative spectral gradient extraction.
'both' Perform spectral gradient extraction.

References:

R. Baumgartner, P. Majdak, and B. Laback. Modeling sound-source localization in sagittal planes for human listeners. The Journal of the Acoustical Society of America, 136(2):791-802, 2014. [ DOI ]