Sound on button press

[liwenna]

Hi Vera!

first thing that comes to mind (I think something like this was
discussed here before... ages ago). Create a second, similar, slide
right after the current one you have now but add your sound object to
this slide so that the sound is heard when this slide appears.
Inbetween the two slides place an inline that sets the second slide's
duration to the remainder of the 2000 ms (slide2.duration = 2000 -
slide1.duration) and perhaps add a goto label line to entirely skip
the second slide in case of no response... i.e. "if slide1.resp = ""
then goto jumplabel", place the label called jumplabel after the
second slide .

A quick and dirty suggestion, I hope it helps you, though.

best,

liw

On Apr 14, 4:27 pm, Vera <vera.d... at googlemail.com> wrote:
> Hi group!
>
> I already got some useful help here about a year ago and everything
> worked fine (after a while you kind of get the "hang" of
> eprime...;-) ), but now I seem to run into a problem (which actually
> seems a very easy-to-do-thing to me, but I haven't figured out a way
> to do this yet).
>
> I show participants an image on a slide for 2000 ms
>
> They have to answer by pushing a button whether a target is present
> (if there is no target, they shouldn't do anything -> typical go-nogo
> task). The image will however stay visible 2000 ms independent of
> their answer (every trial = 2000 ms of image).
>
> Now, as this is all taking place in a driving environment, where quite
> a lot is going on, I would like to give out a sound once a button is
> pushed (but the image still needs to stay there!).
>
> I of course have the option of using a feedback-display, but then I
> only get the sound, once the slide disappears.
>
> I really would like to have the sound on button press, just to confirm
> the participant "ok, noticed your response" (or not: there will not be
> sound in absence of a response).
>
> Any ideas on how to do this?
>
> Thanks in advance!
>
> Greetings,
> Vera

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