exmp2_9.m

用dsp解压mp3程序的算法

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% exmp2_9.m - Plot portion of speech in data file timit1.asc
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

load -ascii timit1.asc;    % input speech signal from data file
soundsc(timit1);           % autoscale and play vector as sound
plot(timit1);              % plot the waveform
title('Speech waveform');
axis([3501, 4000, -4500, 4500]); % zoom in 500 samples only,
                                 % starting from index 3501
xlabel('Amplitude'); ylabel('Time index, n');