Using audioread to read a sequence of files and then combine

Question

Benjamin Colbert 2019-10-21

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/486548-using-audioread-to-read-a-sequence-of-files-and-then-combine

评论： Ninad Kuware 2021-11-8

I am am trying to read all wav files within a folder and then combine those files. I understannd audioread and audiowrite. I am stuggling to automate the processing of a sequence of files within a folder so that I only have to change the dirin name and can move to the next folder. The code here obviously doesn't work but trying to demonstrate what I want to do.

DirIn = 'C:\Users\24hr sound analysis\17';
eval(['filelist=dir(''' DirIn '/*.wav'')'])
for i = 1:length(filelist);
[f(i),fs] = audioread(strcat(DirIn,'/',filelist(i).name)); % read in wav file
end
combined = [f1;f(i)]; 
audiowrite('combined.wav',combined, fs)

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Answer 1

Stephen23 2021-6-28

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https://ww2.mathworks.cn/matlabcentral/answers/486548-using-audioread-to-read-a-sequence-of-files-and-then-combine#answer_735238

编辑：Stephen23 2021-6-28

在 MATLAB Online 中打开

Do NOT use EVAL for trivial code like this.

Use FULLFILE instead of concatenating text together.

P = 'C:\Users\24hr sound analysis\17';
S = dir(fullfile(P,'*.wav'));
for k = 1:numel(S)
    F = fullfile(P,S(k).name);
    [S(k).data,fs] = audioread(F);
end
M = vertcat(S.data); % comma-separated list
audiowrite('combined.wav', M, fs)