数学建模社区-数学中国
标题:
matlab怎么提取音频
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作者:
﹏便是晴天ヾ
时间:
2013-11-6 21:05
标题:
matlab怎么提取音频
matlab怎么提取音频
作者:
madio
时间:
2013-11-7 10:11
使用wavread
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Create a WAV file from the example file handel.mat,
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and read portions of the file back into MATLAB.% Create WAV file in current folder.
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load handel.mat
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hfile = 'handel.wav';
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wavwrite(y, Fs, hfile)
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clear y Fs
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% Read the data back into MATLAB, and listen to audio.
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[y, Fs, nbits, readinfo] = wavread(hfile);
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sound(y, Fs);
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% Pause before next read and playback operation.
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duration = numel(y) / Fs;
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pause(duration + 2)
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% Read and play only the first 2 seconds.
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nsamples = 2 * Fs;
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[y2, Fs] = wavread(hfile, nsamples);
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sound(y2, Fs);
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pause(4)
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% Read and play the middle third of the file.
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sizeinfo = wavread(hfile, 'size');
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tot_samples = sizeinfo(1);
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startpos = tot_samples / 3;
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endpos = 2 * startpos;
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[y3, Fs] = wavread(hfile, [startpos endpos]);
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sound(y3, Fs);
作者:
陌上，烟雨遥
时间:
2013-12-12 09:54
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