Oh, forgot to say that I have the file list as txt file 'all files.txt' ... So my question is how to pick this files one after the other ... Thank you
How to make for loop ?
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Hello everyone,
I have a folder (database) containing some wav files , and I want to read each of them to extract some features later. I know how to read each file from the list by wavread, for example the first one would be: [signal,Fs,nbits,opts] = wavread('database/ae/ae_0a01.wav') And the second one: [signal,Fs,nbits,opts] = wavread('database/ae/ae_0a02.wav') and so on. But I can not figure out how to make loop in order to automatically get them loaded one by one. Could anybody help in that case?
Thanks
Accepted Answer
sixwwwwww
on 22 Oct 2013
Edited: sixwwwwww
on 22 Oct 2013
Dear Negar, try this:
for j = 1:length(files)
[signal,Fs,nbits,opts] = wavread(strcat('database/ae/ae_0a0', num2str(j), '.wav'));
end
Or better way is using:
dir
to information about all the files in a particular directory and then read them. See http://www.mathworks.de/de/help/matlab/ref/dir.html
In case you have file names stored in text file you can do as follows:
ID = fopen('filename.txt');
files = textscan(ID, '%s');
fclose(ID)
fileNames = files{:};
for j = 1:length(fileNames)
[signal,Fs,nbits,opts] = wavread(fileNames{j});
end
I hope it helps. Good luck!
2 Comments
sixwwwwww
on 22 Oct 2013
In that case you can do like this:
for j = 1:length(files)
if j <10
[signal,Fs,nbits,opts] = wavread(strcat('database/ae/ae_0a0', num2str(j), '.wav'));
else
[signal,Fs,nbits,opts] = wavread(strcat('database/ae/ae_0a', num2str(j), '.wav'));
end
end
Good luck!
More Answers (1)
Azzi Abdelmalek
on 22 Oct 2013
out=cell(9,4);
for k=1:9
file=sprintf('database/ae/ae_0a0%d.wav')
[signal,Fs,nbits,opts] = wavread(file)
out{k,1}=signal;
out{k,2}=Fs;
out{k,3}=nbits;
out{k,4}=opts;
end
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