audio files and delays

Conrad cmwarnke at gmail.com
Mon Aug 24 16:13:07 UTC 2009


I have not figured out how to cache.  Getting the sample script from E-
Prime is taking longer than I hoped.  Does anybody have it?

So this issue is unresolved.  Any other thoughts?

Thanks again.
Conrad



On Aug 21, 11:22 am, Conrad <cmwar... at gmail.com> wrote:
> I am running XP.  I see from other discussions streaming is the way to
> go.
>
> I've tried changing the SoundDeviceOutput properties but that didn't
> help.
>
> I have changed the duration of the slide to multiples of the refresh
> rate and that helped a little.
>
> Next up for my game plan is to cache these audio files, if I can
> figure out how to do that.
>
> Thanks for the help!
>
> On Aug 20, 1:48 pm, David McFarlane <mcfar... at msu.edu> wrote:
>
> > Conrad,
>
> > Since you mention streaming mode, you must be using EP2, which
> > answers the first question.  Next question, are you running this
> > under Windows XP, or Vista?
>
> > -- David McFarlane, Professional Faultfinder
>
> > >Hi all,
>
> > >I am developing a task which includes audio files.  My samples loop
> > >pretty fast.  This is how it looks.
> > >Slide 1: 350 ms with audio clip (1 of 12 audio files)
> > >Slide 2: 50 ms of black screen buffer
> > >Slide 3: 600 ms with audio clip (same audio file every time); collect
> > >response
> > >Slide 4: 100 ms of black screen buffer.
> > >Repeat 2500 times.
>
> > >I have noticed that i get a pretty significant delay 150 ms with each
> > >audio file.  This delay seems to grow quite a bit by the end of the
> > >task to 500 ms.
>
> > >I've played around with the pre-release, audio buffer time, and
> > >streaming vs. buffered audio files and I haven't found a combination
> > >where the audio file will completely play and I don't have a massive
> > >delay.
>
> > >Anybody have any thoughts or suggestions?
>
> > >Thanks,
> > >Conrad
> > >Madison, WI
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