how to plot the audio into sample?

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Manjutha Manavalan 2016-10-1

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/305282-how-to-plot-the-audio-into-sample

评论： Walter Roberson 2016-10-1

clc;
clear all;
close all;
fileName='Voice_002.wav';
[y, fs, nbits]=wavread(fileName);
N = length(y);% % N is the number of samples
sound(y, fs);    % Playback of the sound data 
time=(1:length(y))/fs;  % Time vector on x-axis 
plot(time,y);xlabel('Time');
ylabel('Amplitude');    % Plot the waveform w.r.t. time 
fprintf('Information of the sound file "%s":\n', fileName);
fprintf('Duration= %g seconds\n', length(y)/fs);
fprintf('Number of samples %g:\n', N);
fprintf('Sampling rate = %g samples/second\n', fs);
fprintf('Bit resolution = %g bits/sample\n', nbits);