27 lines
534 B
Matlab
27 lines
534 B
Matlab
pkg load signal
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clear all
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close all
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[y,fs]=audioread('modulator22.wav');
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t=0:1/fs:length(y)/fs-1/fs;
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figure;
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set(gcf, 'name','Signal of origin');
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plot(t,y);
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xlabel('time(s)');
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ylabel('amplitude(n.u.');
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audiowrite('modulator22_speedown.wav', y , fs/2);
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[y_speedown,fs_speedown]=audioread('modulator22_speedown.wav');
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t_speedown=0:1/fs_speedown:length(y_speedown)/fs_speedown-1/fs_speedown;
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figure;
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set(gcf, 'name','Speed down of the signal of origin');
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plot(t_speedown,y_speedown);
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xlabel('time(s)');
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ylabel('amplitude(n.u.');
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