timing error

Daniela Pfabigan daniela.pfabigan at univie.ac.at
Wed Jan 13 11:52:56 UTC 2010


Hi!
Does your 'target' contain simple text or external files?
We had huge onset delays when our .jpg-files where not downscaled to the 
appropriate presentation size.

Cheers,
Daniela

Tobi schrieb:
> 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
>   


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