读取多个文件（wavread）[重复]

Question

我想从某个目录读取几个文件。这是我的脚本：

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

但我收到错误：

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);

问题是path 是1x1 cell，它不是string。并且为path 执行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

成为

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

就是这样，阅读有关 matlab 中单元格的文档以了解单元格 (1) 和单元格之间的区别{1}