How can I automatically let Matlab input the file in sequence?

7 views (last 30 days)
alan daniel
alan daniel on 20 Jul 2020
Commented: alan daniel on 21 Jul 2020
How can I let Matlab automatically input the file itself rather than one by one myself?
I mean, I want to put `Sample 1.wav` and then output `Sample 1.png` and then
put `Sample 2.wav` and then output `Sample 2.png` and then put `Sample 3.wav` and then output `Sample 3.png`
I do not want to type myself 1, 2, 3 and rather let the matlab run itself from `1 to 1,000`
[y,Fs] = audioread('sample1.wav');
spectrogram(y,'yaxis')
saveas(gcf,'sample1.png')
Then
[y,Fs] = audioread('sample2.wav');
spectrogram(y,'yaxis')
saveas(gcf,'sample2.png')
Then
[y,Fs] = audioread('sample3.wav');
spectrogram(y,'yaxis')
saveas(gcf,'sample3.png')
  8 Comments
Roger J
Roger J on 21 Jul 2020
great news Alan.
What did you go with, my suggestion or did you use Stephen's solution?
If you used the solution, please mark it as the answer.

Sign in to comment.

Accepted Answer

Roger J
Roger J on 21 Jul 2020
Can you try the following:
>> for i=1:1000
fn_read ="sample"+i+".wav"; % this is the file name to read from
fn_read = char(fn_read); % convert the string to a char array
fn_write ="sample"+i+".png"; % this is the file name to write to
fn_write = char(fn_write); % convert the string to a char array
[y,Fs] = audioread(fn_read);
spectrogram(y,'yaxis')
saveas(gcf,fn_write)
end
let me know if it works.

More Answers (1)

Khaled Hamed
Khaled Hamed on 21 Jul 2020
for i=1:1000
[y,Fs] = audioread(['sample' num2str(i) '.wav']);
spectrogram(y,'yaxis')
saveas(gcf,['sample' num2str(i) '.png'])
end

Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!