MATLAB: ‘pause’ not working properly

pause

Hi everyone,

Simply, I have two files x and y that I wish to play one after another, with a pause of around 5 seconds in between:

soundsc(x, SR) pause(5) soundsc(y, SR)

The files do play one after the other, but there is not a 5 second pause. It works fine when I set it to pause() instead of pause(n).

Seems a bit fussy, but any ideas?

Thanks

Best Answer

The sound and soundsc functions return immediately. Therefore you need a longer pause.

pause(5+length(x)/SR)

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MATLAB: How to reset or close sound() player

After some research I figured the answer to the question. Apparently,subsequent calls to 'sound' or 'soundsc' are executed asynchronously, which means if you have

sound(x)
sound(y)

in your script, both will be executed virtually simultaneously. One way to get around that is to insert a 'pause()' after the first call, and set the pause value at > the time it takes to play the first 'sound()':

sound(x)
pause(5)
sound(y)

MATLAB: Pushbotton which can not be controled with a ‘Pause’ command.

In the place you initialize indfin, set

handles.curseg = 1;

and at the end of that routine,

guidata(hObject, handles);

Then in the callback that you currently have the "for" loop, change to

    i = handles.curseg;                 %new



    if i <= length(indfin)              %changed
        next=output_signal(indini(i):indfin(i));
        subplot(211)
        t=[0:(length(next)-1)]*(1/fs);
        plot(t,next)
        xlabel('tiempo(seg)')
        subplot(212)
        [ysa,f,t,p] = spectrogram(next,2*1024,2*1000,512,fs);
        surf(t,f,10*log10(abs(p)),'EdgeColor','none');
        axis xy; axis tight; colormap(jet); view(0,90);
        xlabel('Tiempo');
        ylabel('Frecuencia (Hz)');
        drawnow();                    %new
        soundsc(next,fs);
        handles.curseg = i + 1;       %new
      end

and at the end of that routine,

guidata(hObject, handles);          %new

This code does nothing when the end is reached; you will probably want to change that.

Best Answer

Related Solutions

MATLAB: How to reset or close sound() player

MATLAB: Pushbotton which can not be controled with a ‘Pause’ command.

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