讀取多個文件（wavread）

Question

我想從某個目錄讀取幾個文件。這裏是我的腳本：

prefix = '\wav\'; 
wav_arr = ['1.wav'; '2.wav'; '3.wav']; 
wav_arr = cellstr(wav_arr); 

len = length(wav_arr); 
sig = []; 
fs = []; 
for i = 1:len 
    path = strcat(pwd, prefix, wav_arr(i)); 
    [s, curr_fs] = audioread(path); 
    sig = [sig s]; 
    fs = [fs curr_fs]; 
end 

但我收到的錯誤：

Error using which 
Argument must contain a string. 

Error in audiovideo.internal.absolutePathForReading (line 7) 
whichFileName = which(filename); 

Error in audioread (line 74) 
filename = audiovideo.internal.absolutePathForReading(... 

Error in main_experiment (line 14) 
    [s, curr_fs] = audioread(path); 

的問題是，path是1x1 cell，它不是一個string。對於path執行cellstr()不起作用。

Answer 1

for i = 1:len 
    path = strcat(pwd, prefix, wav_arr(i)); 
    [s, curr_fs] = audioread(path); 
    sig = [sig s]; 
    fs = [fs curr_fs]; 
end 

成爲

for i = 1:len 
    path = strcat(pwd, prefix, wav_arr{i}); 
    [s, curr_fs] = audioread(path); 
    sig = [sig s]; 
    fs = [fs curr_fs]; 
end 

這就是全部，閱讀有關MATLAB中的細胞中的文檔，以瞭解細胞之間的差值（1）和細胞{1}