Creating a music player with matlab

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.

Answer 1

[Honglei Chen]

You may want to look at audiorecorder and audioplayer

http://www.mathworks.com/help/matlab/ref/audioplayer.html

http://www.mathworks.com/help/matlab/ref/audiorecorder.html

alternatively, if you have DSP System Toolbox, you can also use dsp.AudioRecorder, dsp.AudioFileReader, and dsp.AudioPlayer

http://www.mathworks.com/help/dsp/ref/dsp.audiorecorderclass.html

http://www.mathworks.com/help/dsp/ref/dsp.audiofilereaderclass.html

http://www.mathworks.com/help/dsp/ref/dsp.audioplayerclass.html

[Walter Roberson]

audioplayer does not offer any obvious way to queue additional samples as you go. The DSP functions do appear to offer that possibility.