% beethovendwt.m displays the wavelet transform for the signal in wavelets.wav clf; [b]=wavread('beethoven.wav');% read "wavelets" data file b=b-mean(b); % center the data h=[1 1]/sqrt(2); % multiresolution coefficients for Haar wavelet h=[1 2 1]/sqrt(8); % multiresolution coefficients for triangle wavelet % put the h you want to use second showdwt(b',h,44100);