"PortAudio Error: Unanticipated host error".Audio output device has become unresponsive: 1024 sample(s) remain after timeout.

Hi all,

I Have a problem with the reproduction of a sound using startBackground.

After I run the script below, just SOMETIMES, the following error messages appear:

"Audio output device has become unresponsive: 1024 sample(s) remain after timeout."

"PortAudio Error: Unanticipated host error".

Do you know why sometimes the script works and sometimes doesn't?

Thanks a lot.

sound = audioread('sound_s2.wav');
        s2 = daq.createSession('directSound'); %create session
        d = daq.getDevices; %check and find devices
        ID2 =d(1,4).ID; %this is the ID of the external sound card that I want to use
        addAudioOutputChannel(s2,ID2,1:5) %open 5 channels
        queueOutputData(s2,sound);
        %s2.IsContinuous = true;
        WaitSecs(5); %wait to let queue data
        startBackground(s2)
        WaitSecs(15); %play for 15 seconds
        stop(s2);
        

[Andreas Georgiou]

I get a similar error when I use "sound(....)". I used sound in a loop and only got the error in the 3rd iteration of the loop. The actual error says...

Error using sound (line 79)

Device Error: Unanticipated host error

I can only think that the computer goes in standby and the device is not responding.