Sound to signal a key press

[David McFarlane]

Are these self-paced trials, with no time limit?  If so, you could 
just put a SoundOut with a beep.wav after whatever object you use to 
present your stimulus & get response, e.g.,

- TrialProc
     - StimSlide
     - BeepSound

If trials are self-paced but with a time limit, then you could use an 
If-Then either to make a beep in script as Rinus sugessts (although 
the E-Basic beep command does not work on some computers), or with a 
label to skip past the BeepSound, e.g.

- TrialProc
     - StimSlide
     - CheckResponseScript
       (If StimSlide.RT = 0 Then goto NoResponseLabel)
     - BeepSound
     - NoResponseLabel

If trials are not self-paced then things get considerably trickier.

-- David McFarlane, Professional Faultfinder


At 6/27/2009 10:23 AM Saturday, you wrote:

>I presume the length is not infinite (otherwise the stimulus will not
>go away untill they press)..
>Might it be helpful just to do a simple beep with inline? Something in
>the line of:
>
>if TextDisplay1.RESP <> "" then beep
>
>(TextDisplay or whatever you're using that is).
>
>Kind regards,
>
>Rinus
>
>
>On Jun 26, 4:57 pm, River <ll... at medschl.cam.ac.uk> wrote:
> > Hi,
> >
> > This seems like a potentially simple thing to do but I can't figure it
> > out-is it possible to make the computer or SR box emit a beep when a
> > response key is pressed?
> > Participants will be viewing stimuli on a computer screen and
> > responding to it by pressing one of two buttons on the SR box (they
> > will press a key on every trial). I'm looking at reaction times so I
> > don't want them to have to look down to make sure they have made a
> > response (i.e. light flashes by the keys aren't ideal) however its
> > been mentioned that a noise to confirm a response has been recorded
> > would be useful....
> >
> > Does anyone know if this is possible or should I just ask them to
> > press the keys down firmly!? I'm currently running version 1 of
> > Eprime.
> >
> > Many thanks,
> >
> > River
>

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