I have lots of wave file. How do I read each one of them using sprintf command?

The wave file are like.The first digit- speaker id, second digit-utterence id

• 00
• 01
• 02
• 03
• 04
• .
• .
• .
• 59

I tried using

for m=0:5
for y=0:9
 file=sprintf('%s%d%d','E:\0 (1)\0\',m,y);
 [s,fs]=wavread(file);
end
end

But this gives error. Alternatively I tried

mypath = 'E:\\0 (1)\\0\\';
filename = sprintf([mypath '%s%d.wav'],m,y); 
 [s,fs] = audioread(filename);

But it gave error as : Function is not defined for sparse inputs.

Please help me.

Answer 1

[Walter Roberson]

mypath = fullfile('E:', '0 (1)', '0');
for m = 0 : 5
  for y = 0 : 9
    filename = fullfile(mypath, sprintf('%d%d.wav', m, y));
    [s, fs] = audioread(filename);
    ...
 end
end

Or in your situation you could use a single loop:

mypath = fullfile('E:', '0 (1)', '0');
for idx = 0 : 59
  filename = fullfile(mypath, sprintf('%02d.wav', idx));
  [s, fs] = audioread(filename);
    ...
end

[sangeet sagar]

It give the same error: Function not defined for sparse inputs. Please see the attached file. Its how the wave files are.

[sangeet sagar]

Second code works fine, but I dont understand what is the issue with the first one.

[Image Analyst]

Your first code:

for m=0:5
    for y=0:9
       file=sprintf('%s%d%d','E:\0 (1)\0\',m,y);
       [s,fs]=wavread(file);
    end
end

gets the file (perhaps) but doesn't do anything with the s and fs it retrieved.

There are ways you could make your code more robust, for example by checking in advance if the file exists before calling wavread(), and by updating to the new function audioread(), etc.

See the FAQ.

[Walter Roberson]

Which function does it say is not defined for sparse input?