timing error

[Tobi]

Okay, after having read the entire Chapter 3 I found out that I have
actually done everything right in terms of setting. However I found
the reason for the timing error having a closer look at the result
file. The timing error was always there in case the slide "ISI"
between the slides "Cue" and "Target" had the duration variable 0. I
also used other durations for "ISI", specified in the block list. As a
slide always uses at least on circle, the timing error then occurs
even when using OnsetSync function.

This seems to be a serious problem. Do you have any idea how to solve
this problem? I could maybe use a script asking for the ISI duration
value and skipping the "ISI" slide when duration is 0. However a
script in a short sequence of stimuli might also cause some timing
problems. Maybe you have a better idea?

BEst,
Tobias

On 14 Jan., 01:33, Tobi <tobias... at gmail.com> wrote:
> Thanks David,
>
> I just found the User's Guide. I will read the 50 pages of chapter 3,
> I promise.
> Could you or anyone give me a hint for my special problem anyway?
>
> Thanks a lot,
> Tobias
>
> On 13 Jan., 14:45, David McFarlane <mcfar... at msu.edu> wrote:
>
> > Tobias,
>
> > Everything you need to know about critical timing is in Chapter 3 of the
> > User's Guide that came with E-Prime.  Go study that now.  Do not pass
> > Go, do not collect $200.
>
> > -- David McFarlane, Professional Faultfinder
>
> > > Hi everyone,
>
> > > I am apparently having a timing error. In a procedure I use a slide
> > > called "target". I display it for 78 ms on a screen with 100 Hz which
> > > should result in display times of 80 ms. In the result file I find
> > > "target.OnsetDelay" values of either 2 ms (as wished) or 20 ms.
> > > "target.DurationError" is 33 ms.
>
> > > I used "vertical blank" for "OffsetSync" and "OnsetSync" and 100 ms of
> > > pre-release time to virtually avoid such errors.
>
> > > Another slide beeing displayed before the target (98 ms, same
> > > settings) does not show this error.
>
> > > Does anyone have an idea what this error could result from?
>
> > > Thanks a lot,
> > > Tobias
-------------- next part --------------
-- 
You received this message because you are subscribed to the Google Groups "E-Prime" group.
To post to this group, send email to e-prime at googlegroups.com.
To unsubscribe from this group, send email to e-prime+unsubscribe at googlegroups.com.
For more options, visit this group at http://groups.google.com/group/e-prime?hl=en.