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create arrays from wav file

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sam aldoss
sam aldoss 2018-9-30
评论： Walter Roberson 2018-10-2
hello
am beginner in Matlab and am working on Audio signals. am trying to create a data from folds that contains 256 files(wav) to be analysis ?

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回答（1 个）

Image Analyst
Image Analyst 2018-9-30
  2 个评论
sam aldoss
sam aldoss 2018-10-2
this shows how to save txt file and other but it does not do the wav reading
Walter Roberson
Walter Roberson 2018-10-2
projectdir = 'Name_of_folder_goes_here';
dinfo = dir( fullfile(projectdir, '*.wav') );
filenames = fullfile( projectdir, {dinfo.name} );
for K = 1 : length(filenames)
thisfile = filenames{K};
[~, basename, ~] = fileparts(thisfile);
newfile = fullfile(projectdir, [basename, '.txt']);
[data, fs] = audioread(thisfile);
save(newfile, 'data', '-ascii', '-double');
end
This will create a .txt file in the same directory and with the same basic name as the .wav file.
These files will not be efficient ways to process the signals. About the only reason to create such files would be if you were processing the files with external software -- and if you were then it would be important to know what file format the external software needed.

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