THE AUDITORY MODELING TOOLBOX
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LYON2011_DESIGN - computes all the 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 | A struct with the pole-zero filter cascade parameters |
| CF_AGC_params | A struct with the automatic gain control parameters |
| CF_IHC_params | A struct with the inner hair cell parameters |
Output parameters:
| CF | filter coefficients |
Description:
CF_CAR_params consists of the following field, among others:
| 'ac_corner_Hz',ac_corner_Hz | |
| Corner frequency (Hz) of the high-pass filter in the CAR stage (e.g., at basilar membrane). Set ac_corner_Hz to a non-zero to enable the filter in CAR stage. Set ac_corner_Hz to 0 to disable the filter. Default is 0, i.e., enabled in the IHC stage. The filter should be enabled either in CAR or IHC stage. | |
CF_IHC_params consists of the following field, among others:
| 'ac_corner_Hz',ac_corner_Hz | |
| Corner frequency (Hz) of the high-pass filter in the IHC stage. Set ac_corner_Hz to a non-zero to enable the filter in IHC stage. Set ac_corner_Hz to 0 to disable the filter. Default is 20, i.e., enabled in the IHC stage. The filter should be enabled either in CAR or IHC stage. | |
References:
R. F. Lyon. Cascades of two-pole–two-zero asymmetric resonators are good models of peripheral auditory function. J. Acoust. Soc. Am., 130(6), 2011. [ http ]
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