Onset delay for playing audio on a slide
JACanterbury
jacanterbury at gmail.com
Fri Aug 24 10:41:26 UTC 2012
Thanks for the reply David however, if I've understood your suggestion
correctly, all this will do is play the video and audio files sequentially
(pausing the video early after the 'duration' has elapsed).
My reason for wanting to delay the start of the audio playing was so that
it would run at the same time as the video but the video segment is longer
and I didn't want the audio to start straight away but to be delayed a
short while ~2 seconds.
I have a lot of audio/video files and don't want to edit the audio files to
insert a blank gap at the beginning of each.
If anyone has any other suggestions, I'd welcome them. Equally, if I come
up with a workaround I'll post back,
Thanks,
John
On Thursday, August 23, 2012 6:42:34 PM UTC+1, McFarlane, David wrote:
> John,
>
> This sort of question keeps popping up. People get the mistaken
> impression that each sub-object on a Slide should have its own timing
> properties. But a Slide, by design, always presents all of its
> sub-objects simultaneously.
>
> To present stimuli with various delay offsets, simply present the
> first stimulus with a Duration equal to the desired delay, and then
> present the next stimulus. In your case, present the Slide with your
> video, but no audio. Set the Duration of the Slide to your desired
> delay. Then simply follow the Slide with an ordinary SoundOut object
> for your audio.
>
> Hope that helps.
>
> -----
> David McFarlane
> E-Prime training
> online: http://psychology.msu.edu/Workshops_Courses/eprime.aspx
> Twitter: @EPrimeMaster (twitter.com/EPrimeMaster)
>
>
> At 8/23/2012 12:48 PM Thursday, you wrote:
> >This must be straightforward but I can't see how to do it.
> >
> >E-prime v2 : I have a slide with video and audio sub objects on it
> >and I want the video to start immediatley (which it does by default)
> >but I want to delay the time at which the audio starts playing and I
> >can't see how to do this.
> >
> >Can anyone help?
> >
> >(the 'StartOffset' property does something different)
> >
> >Many thanks,
> >
> >John
>
>
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