Create an octaveFilterBank object. Call fvtool to visualize the filter bank.

octFiltBank = octaveFilterBank;
fvtool(octFiltBank);

To visualize a subset of filters in the filter bank, specify the second argument as a row vector of indices between one and the number of filters in the filter bank. If not specified, fvtool visualizes 1 to N filters of the filter bank, where N is the smallest of octFiltBank.NumFilters and 64. Visualize the ninth filter.

fvtool(octFiltBank,9);

To specify the number of FFT points used to compute the frequency response, use the NFFT name-value pair. Specify that the frequency response is calculated using a 8192-point FFT.

fvtool(octFiltBank,'NFFT',8192);

Create a gammatoneFilterBank object. Call fvtool to visualize the filter bank.

gammaFiltBank = gammatoneFilterBank;
fvtool(gammaFiltBank);

To visualize a subset of filters in the filter bank, specify the second argument as a row vector of indices between one and the number of filters in the filter bank. If not specified, fvtool visualizes 1 to N filters of the filter bank, where N is the smallest of gammaFiltBank.NumFilters and 64. Visualize the ninth filter.

fvtool(gammaFiltBank,9);

To specify the number of FFT points used to compute the frequency response, use the NFFT name-value pair. Specify that the frequency response is calculated using a 8192-point FFT.

fvtool(gammaFiltBank,'NFFT',8192);