THE AUDITORY MODELING TOOLBOX

Applies to version: 1.4.0

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MAY2011 - Azimuthal localization of concurrent talkers

Usage:

out = may2011(input,fs);

Input parameters:

input binaural input signal [nSamples x 2 channels]
fs sampling frequency in Hertz

Output parameters:

out localization structure

Description:

may2011 is a probabilistic localization model.

The out structure has the following fields:

.param processing parameters
.azFrames frame-based azimuth estimate [Frames x 1]
.azimuth time-frequency azimuth estimate [nFilter x nFrames]
.rangeAZ azimuth grid [nAzDir x 1]
.prob 3D probability map [nFilter x nFrames x nAzDir]
.loglik 3D log-likelihood map [nFilter x nFrames x nAzDir]
.itd interaural time difference [nFilter x nFrames]
.ild interaural level difference [nFilter x nFrames]
.ic interaural coherence [nFilter x nFrames]

References:

T. May, S. van de Par, and A. Kohlrausch. A probabilistic model for robust localization based on a binaural auditory front-end. IEEE Trans Audio Speech Lang Proc, 19:1--13, 2011.

N. Roman, D. L. Wang, and G. J. Brown. Speech segregation based on sound localization. The Journal of the Acoustical Society of America, 114(4):2236--2252, 2003.