sgram1.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
%axis1=LEFT:RIGHT;
axes(ax1);
[B1,F1,T] = specgram ( signal1,[], 10000, [], [] );
time=1:length(signal1);
% plot the spectrogram
imagesc(time,F1, -20*log10(10+abs(B1))),axis xy, colormap(jet);
title('Speech signal - original');