sgram2.m

这是一个用于语音信号处理的工具箱

%spectrogram for speech data
%created by Childers
%May 19, 1999

% call Matlab function to calculate spectrogram from input signal
axes(ax1);

[B2,F2,T] = specgram ( excitation,[], 10000, [], [] );
time=1:Ntotal+100;
% plot the spectrogram
imagesc(time,F2,-20*log10(10+abs(B2))),axis xy, colormap(jet); 
title('Excitation Signal');