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Creating a music player with matlab

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Shubham Nishad
Shubham Nishad 2014-1-29
评论： Walter Roberson 2014-1-30
Hi, I am creating a music player in matlab. One way to play sound is to read the wav file as
[record,fs] = wavread('filename');
sound(record,fs);
But that approch is not very effective because it allocates a lot of memory to variable record
I have another idea in my mind. I'll read a small number of samples
[record,fs] = wavread('filename',[n1,n2]);
sound(record,fs);
and then I read next set of samples and play them and this process will go on till the end of file. But I am not able to come up with some algorithm to accomplish it.
I have however figured out how to compute number of samples in a file.
siz = wavread('filename','size');
I tried this step
i = 1;
n1 = 1;
n2 = 100;
siz = wavread('filename','size');
siz1 = siz(1,1);
while(i < siz1)
[record,fs] = wavread('filename',[n1,n2]);
sound(record,fs);
n1 = n1+100;
n2 = n2+100;
i = i+100;
end
but it's not working. Please help me figure out the correct procedure to implement by idea.

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回答（1 个）

Honglei Chen
Honglei Chen 2014-1-29
编辑：Honglei Chen 2014-1-29
  1 个评论
Walter Roberson
Walter Roberson 2014-1-30
audioplayer does not offer any obvious way to queue additional samples as you go. The DSP functions do appear to offer that possibility.

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