MATLAB: Issue with running several sound statements…only last statement will play sound

sequential sound statementsoundwavwav. files

I have 4 sound statements in a row. When program is run, only the last sound statement plays wav file. However if I place a breakpoint at first sound statement and then stepthru, all of them play wav file. Is there a statement that needs to go in between sound statements?
%Listen to the sound at the different stages… sound(anlgSig,origSampRate,resolution); %play the original sound sound(sampledSig, reSampRate,resolution); %play the resampled sound signal sound(quantizedSig,reSampRate,resolution); %play the quantized signal sound(recoveredSig(1:length(quantizedSig)),reSampRate,resolution);%play the recovered sound at the receiver

Best Answer

Franklin - since your four sound function calls follow one after the other, all four sounds are playing at roughly the same time. You have a couple of options. The first is to put a pause in between each call to sound given the number of samples being played and the sample rate.
 % play the original sound 

 sound(sampledSig, reSampRate,resolution);
 pause(ceil(length(sampledSig)/reSampRate));
 % play the resampled sound signal 

 sound(quantizedSig,reSampRate,resolution);
 pause(ceil(length(quantizedSig)/reSampRate));
 % etc.

The other option is to use the audioplayer
 % play the original sound 
 player = audioplayer(sampledSig, reSampRate,resolution);
 playblocking(player);
 % play the resampled sound signal 
 player = audioplayer(quantizedSig,reSampRate,resolution);
 playblocking(player);
 % etc.
We use the playblocking function to play the sound and not return control until the playback has completed. A nicer alternative to a pause.
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