THE AUDITORY MODELING TOOLBOX
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LYON2011_DESIGN - computes all the filter coefficients needed to run Lyon's CARFAC model
Usage
CF = lyon2011_design(n_ears, fs, CF_CAR_params, CF_AGC_params, CF_IHC_params)
Input parameters
| n_ears | number of input signals |
| fs | sampling frequency [Hz] |
| CF_CAR_params | struct, pole-zero filter cascade parameters |
| CF_AGC_params | struct, automatic gain control parameters |
| CF_IHC_params | struct, inner hair cell parameters |
Output parameters
| CF | filter coefficients |
Description
Defaults to Glasberg & Moore's ERB curve: ERB_break_freq = 1000/4.37; % 228.833 ERB_Q = 1000/(24.7*4.37); % 9.2645
All args are defaultable; for sample/default args see the code; they make 96 channels at default fs = 22050, 114 channels at 44100.
This function designs the CARFAC (Cascade of Asymmetric Resonators with Fast-Acting Compression); that is, it take bundles of parameters and computes all the filter coefficients needed to run it.
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