--- Forwarded Message from Hall/Mitchell <[log in to unmask]> ---

>Date: Tue, 21 May 2002 17:58:17 -0500
>From: Hall/Mitchell <[log in to unmask]>
>To: Language Learning and Technology International Information Forum     <[log in to unmask]>
>Subject: Re: #6688.4 Streaming video HELP! (!)
>References: <[log in to unmask]>

------------------
Without knowing the specifics of how the files were encoded and which codec's were used to compress these files I can make some generalizations that might be of help.  First, are both the Quicktime and real movies streamed?  if so are you viewing the largest stream of each?  You can change the display size of the Quicktime movies but not from a web page if they are
imbedded.  Copy the link to the movie and and open it using the Quicktime player.  You will be able to resize it from there.  Also if you do this you can use an option called present movie that basically blacks everything on the screen except for the movie being played.  What this does is free up the graphics card from having to draw pixels that are not necessary
(the desktop) and will help with performance.  I am not sure if real gives you this option.  It sounds like your graphics card is what is giving you problems, more that your network connection.  When you double the play size you are doubling the load placed on the graphics card and it could account for the problem you are describing.

LLTI-Editor wrote:

> --- Forwarded Message from "Read Gilgen" <[log in to unmask]> ---
>
> >Date: Fri, 17 May 2002 11:17:18 -0500
> >From: "Read Gilgen" <[log in to unmask]>
> >To: <[log in to unmask]>
> >Subject: Re: #6688 Streaming video HELP!
>
> ------------------
> Without knowing more detail, here's one thing to consider.  11Mbps access points are theoretical at best.  If two people are downloading/streaming at the same time, you cut that in half.  If 11 are using bandwidth at the same time, you get 1Mbps each.  That's the major problem with wireless right now, especially for bandwidth intensive activities (such as video).
>
> >>> [log in to unmask] 05/17/02 08:52AM >>>
> --- Forwarded Message from Beth Secrist <[log in to unmask]> ---
>
> >Date: Wed, 15 May 2002 15:14:25 -0400
> >From: Beth Secrist <[log in to unmask]>
> >Reply-To: [log in to unmask]
> >Organization: University of Tennessee
> >To: LLTI-Editor <[log in to unmask]>
> >Subject: Streaming video HELP!
>
> Hello LLTIers!
>
> Since we are *still* experiencing problems streaming video over our
> wireless network (and probably over wired, but unable to test that
> yet!), I would like your help in determining what could be expected of
> streamed files.
>
> We have both Real and QT files (although the QT is served from the Real
> server). Our Digital Media Services encoded these files and they both
> play at a "standard" size. Our throughput is 1 Mbps (athough there are
> 11 Mbps access points all over the place!). No matter where we set the
> preferences for Real, there are still skips and halts when playing the
> video at double size (double because the size is necessary when showing
> the video in class through ceiling-mounted Proxima projectors).
>
> Am I expecting too much to see mouths and sound synchronized with next
> to no skips during play (at double size). At the regular size it plays
> with no problems.
>
> Also, the files look much better in QT, but it appears that the plugin
> doesn't allow one to double the video size. Does anyone know if there is
> a way to change that without re-digitizing everything?
>
> Thank you for your help! Beth
>
> Beth Secrist, Director
> Language Resource Center
> Dept. of Modern Foreign Langs. & Lits.
> University of Tennessee
> Knoxville, TN 37996
> (865)974-6494; [log in to unmask]
> http://web.utk.edu/~mfll/LRC/