THE AUDITORY MODELING TOOLBOX

Applies to version: 1.4.0

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eurich2022_decision - Decision stage of the Eurich et al. (2022) model

Usage:

dprime = eurich2022_decision(processed,mpar)

Input parameters:

processed Matrix containing the processed stimulus from eurich2022_processing
mpar

Structure with the following model parameters:

  • fs: sampling frequency of model
  • Filters_per_ERB_aud: spacing of peripheral filter central frequencies in ERB
  • flow: lower bound of gammatone filterbank
  • fhigh: higher bound of gammatone filterbank
  • gtorder: filter order of gammatone filters (hohmann2002)
  • IPDnoise: Internal noise affecting the IPD extraction
  • Dnoise: Internal noise affecting the Decision stage
  • GaussSigma: std of Gaussian across-channel smoothing
  • iKernelThresh: treshold above which a value of the Gaussian filter window is used (below := 0)
  • n_hcbins: number of bins to be used in IPD distribution computation via histcounts

Output parameters:

dprime Sensitivity index \(d' = \frac{\left\vert \mu_a - \mu_b \right\vert}{\sigma}\)

References:

B. Eurich, J. Encke, S. D. Ewert, and M. Dietz. Lower interaural coherence in off-signal bands impairs binaural detection. The Journal of the Acoustical Society of America, 151(6):3927--3936, 06 2022. [ DOI | arXiv | http ]

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