cannot create mat file.

Question

Nor Ashikin 2016-5-4

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https://ww2.mathworks.cn/matlabcentral/answers/282451-cannot-create-mat-file

评论： Nor Ashikin 2016-5-4

>> filename=('s2.wav');
>> y=wavread(filename);
>> [y,Fs,nbits]=wavread(filename);
>> save(filename,'-mat');

why save(filename,'-mat'); does not create the *.mat file?

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Answer 1

CS Researcher 2016-5-4

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在 MATLAB Online 中打开

You should do this:

filename = 's2.wav';
[y, Fs] = audioread(filename);
save('s2.mat','y');

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Walter Roberson 2016-5-4

mat files do not appear in workspaces. Variables appear in workspaces. But not if you are using a static workspace

Nor Ashikin 2016-5-4

Thanks for your help CS Researcher and Walter Roberson as well. It worked actually. Just my mistake.

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Answer 2

Walter Roberson 2016-5-4

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save() is not defined to override your choice of file extensions. If a file already has an extension, then save() will use that extension. So what you are doing is overwriting your .wav file with the mat contents.

If you want to change the extension, then use fileparts to extract the file name without the extension; when there is no extension, .mat will be added.