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Saving extracted audio files in a For loop

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whalelady
whalelady on 8 Apr 2020
Edited: Bhaskar R on 8 Apr 2020
Hi, I am looking for some help.
I have a couple of audio files in a directory.
I extracted a portion of each audio file, and I want to save it into a new audio file.
How do I do it in a loop such that it is saved like in the following examples?
The below is my current code. Could someone vet for me especially the last two lines before end?
Thank you in advance!
Initial Files Extracted New Files
data_1.m4a extractedData_1.m4a
data_2.m4a extractedData_2.m4a
data_3.m4a extractedData_3.m4a
for p = 1:3
startSample = n;
endSample = length(data);
extractedData = data(startSample:endSample);
audiowrite(extractedData_,extractedData,fs);
filename = sprintf('%s%d.mat', extractedData_, p);
end

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Accepted Answer

Bhaskar R
Bhaskar R on 8 Apr 2020
Edited: Bhaskar R on 8 Apr 2020
wor_dir = 'your_directory_path'
for p = 1:3
startSample = n;
endSample = length(data);
extractedData = data(startSample:endSample);
file_ = sprintf('%s%d.m4a', 'extractedData_', p);
filename = fullfile(wor_dir, file_)
audiowrite(filename, extractedData,fs);
end

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