THE AUDITORY MODELING TOOLBOX
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DIETZ2011INTERAURALFUNCTIONS - Interaural stages of Dietz 2011
Input parameters
| s1 | Input signal |
| s2 | Input signal |
| tau | Lowpass filter parameter, such that a = exp(-1./(fs*tau)), lowpass = filter([1-a], [1, -a], x) |
| fc | Center frequencies |
| fs | Sampling frequencies |
Output parameters
| outp | Structure containing the output. See the description below. |
Description
XXX Description is missing. What does this function actually do?
Note: If tau is a scalar, lowpass is done on every channel with the value of tau. If the filter parameter tau is a vector, it has to have as many elements as the number of channels of s1 and s2; each value tau(i) is applied to the signals in s1(i,:) and s2(i,:).
The output structure outp contains the following fields:
| .itf | Transfer function |
| .itf_equal | Transfer function without amplitude |
| .ipd | Phase difference in rad |
| .ipd_lp | Based on lowpass-filtered itf, phase difference in rad |
| .ild | Level difference in dB |
| .itd | Time difference based on instantaneous frequencies |
| .itd_C | Time difference based on central frequencies |
| .itd_lp | As .itd, with low-passed itf |
| .itd_C_lp | As .itd_C, with low-passed itf |
| .f_inst_1 | Instantaneous frequencies in the channels of the filtered s1 |
| .f_inst_2 | Instantaneous frequencies in the channels of the filtered s2 |
| .f_inst | Instantaneous frequencies (average of f_inst1 and f_inst_2) |
References:
M. Dietz, S. D. Ewert, and V. Hohmann. Auditory model based direction estimation of concurrent speakers from binaural signals. Speech Communication, 53(5):592-605, 2011. [ DOI | http ]
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