How to convert from PCM samples to decoded audio in wav/wmv format?

I have came across the mp3 decoder coding from here.

It is shown that the coding to convert two granules into left and right channel to send to speakers is as below:

if isempty(out_PCM_samples)
 out_PCM_samples(1,1:1152) = [temp_PCM_samples(1,:) temp_PCM_samples(3,:)]; %channel 1
 out_PCM_samples(2,1:1152) = [temp_PCM_samples(2,:) temp_PCM_samples(4,:)]; %channel 2
else
 length_PCM = numel(out_PCM_samples(1,:));
 out_PCM_samples(1,length_PCM+1:length_PCM+1152) = [temp_PCM_samples(1,:) temp_PCM_samples(3,:)]; %channel 1
 out_PCM_samples(2,length_PCM+1:length_PCM+1152) = [temp_PCM_samples(2,:) temp_PCM_samples(4,:)]; %channel 2
end

In what way can I output the decoded audio which is playable instead of just showing it in PCM samples?