THE AUDITORY MODELING TOOLBOX
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REIJNIERS2014 - - An ideal-observer model of human sound localization
Usage
[results,template,target] = reijniers2014(template,target,'num_exp',20,'sig_S',4.2);
Input parameters
- template.fs
- sampling rate (Hz)
- template.fc
- ERB frequency channels (Hz)
- template.itd
- itd computed for each hrir (samples)
- template.H
- Matrix containing absolute values of HRTFS for all grid points
- template.coords
- Matrix containing cartesian coordinates of all grid points, normed to radius 1m
- template.T
- angular template for each coordinate
- target.fs
- sampling rate
- target.fc
- ERB frequency channels
- target.itd
- itd corresponding to source position
- target.S
- sound source spectrum
- target.H
- Matrix containing absolute values of HRTFS for all source directions
- target.coords
- Matrix containing cartesian coordinates of all source positions to be estimated, normed to radius 1m
- target.T
- angular template for each coordinate
Output parameters
| doa | directions of arrival in spherical coordinates |
| --X_DOT_est | : estimated [num_sources, num_repetitions, 3] .real : actual [num_sources, 3] |
| params | additional model's data computerd for estimations |
| --X_DOT_est_idx | : Indices corresponding to template direction where the maximum probability density for each source position is found |
- .est_loglik
- Log-likelihood of each estimated direction
| --X_DOT_post_prob | : Maximum posterior probability density for each target source |
| --X_DOT_freq_channels | |
| : number of auditory channels | |
| --X_DOT_T_template | : Struct with template data elaborated by the model |
| --X_DOT_T_target | : Struct with target data elaborated by the model |
- .Tidx
- Helper with indexes to parse
- the features from T and X
reijniers2014 accepts the following optional parameters:
- 'num_exp=num_exp Set the number of localization trials.'
- Default is num_exp = 500.
| 'SNR',SNR | Set the signal to noise ratio corresponding to different sound source intensities. Default value is SNR = 75 [dB] |
| 'sig_itd',sig | Set standard deviation for the noise on the itd. Default value is sig_itd = 0.569. |
| 'sig_I',sig | Set standard deviation for the internal noise. Default value is sig_I = 3.5. |
| 'sig_S',sig | Set standard deviation for the variation on the source spectrum. Default value is sig_I = 3.5. |
Further, cache flags (see amt_cache) can be specified.
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