plotfilterbank(coef,a); plotfilterbank(coef,a,fc); plotfilterbank(coef,a,fc,fs); plotfilterbank(coef,a,fc,fs,dynrange);
plotfilterbank(coef,a) plots filterbank coefficients coef obtained from either the filterbank or ufilterbank functions. The coefficients must have been produced with a time-shift of a. For more details on the format of the variables coef and a, see the help of the filterbank or ufilterbank functions.
plotfilterbank(coef,a,fc) makes it possible to specify the center frequency for each channel in the vector fc.
plotfilterbank(coef,a,fc,fs) does the same assuming a sampling rate of fs Hz of the original signal.
plotfilterbank(coef,a,fc,fs,dynrange) makes it possible to specify the dynamic range of the coefficients.
C=plotfilterbank(...) returns the processed image data used in the plotting. Inputting this data directly to imagesc or similar functions will create the plot. This is usefull for custom post-processing of the image data.
plotfilterbank supports all the optional parameters of tfplot. Please see the help of tfplot for an exhaustive list.
In addition to the flags and key/values in tfplot, plotfilterbank supports the following optional arguments:
| 'fc',fc | Centre frequencies of the channels. fc must be a vector with the length equal to the number of channels. The default value of [] means to plot the channel no. instead of its frequency. |
| 'ntickpos',n | Number of tick positions along the y-axis. The position of the ticks are determined automatically. Default value is 10. |
| 'tick',t | Array of tick positions on the y-axis. Use this option to specify the tick position manually. |
| 'audtick' | Use ticks suitable for visualizing an auditory filterbank. Same as 'tick',[0,100,250,500,1000,...]. |