How to process and rewrite multiple wav file into different folder?

Question

Epri Pratiwi 2020-8-11

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/578017-how-to-process-and-rewrite-multiple-wav-file-into-different-folder

评论： SUNKARA GRISHMA 2021-5-2

I have a folder with multiple song. After I processed these .wav, I also want to rewrite and put it into different folder. How to do this?

However, this .wav has been already processed from multiple function (wavToPreprocWav.m, wavToElectrode, and electrodeToWav)

Thanks

[y, fs] = audioReadNCU();
[y, fs] = wavToPreprocWav(y, fs);
band = wavToElectrode(y, fs);
y = electrodeToWav(band, fs);
sound(y,fs);
audiowrite('/Users/epriwahyupratiwi/Downloads/GUI/tut1/song test/new.wav',y,fs);

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Antonio Aguirre 2020-8-13

What is wrong with your approach already, are you getting any errors? You are using audiowrite with the minimum set of required inputs.

Epri Pratiwi 2020-8-13

I don't know how write the code to process all the file in the folder.

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Answer 1

Kiran Felix Robert 2020-8-14

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https://ww2.mathworks.cn/matlabcentral/answers/578017-how-to-process-and-rewrite-multiple-wav-file-into-different-folder#answer_480078

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Hi Epri,

It is my understanding that you are trying to read multiple files one by one,process it and save the processed file to a different location. This can be done as shown in the following example (assuming all the files in the read folder are audio files). Refer to the dir documentation for more details.

FileList = dir('*.*'); 
for i = 1:length(FileList) 
    file = FileList(i).name; 
    % perform all necesary functions  
    % [y,fs] = audioread(file); 
    % [y, fs] = wavToPreprocWav(y, fs); 
    %band = wavToElectrode(y, fs); 
    %y = electrodeToWav(band, fs); 
    %sound(y,fs); 
    write_filename = "new_" +num2str(i)+".wav";  
    %write_directory is the path to the directoy where  
     %the processed file needs to be saved
    audiowrite(write_directory+write_filename,y,fs); 
end 