Re: Streaming -Reply -Reply -Reply

Jay Orbik (C10JMO1@WPO.CSO.NIU.EDU)
Tue, 27 Jan 1998 17:38:43 -0600

Normally the process goes like this:
You use the capture card to digitize the video (from a tape)
as an .avi or QuickTime file. Then you encode (compress)
the file as a streaming file using Real or another encoding
software package. You should encode from an uncompressed
.avi or QT file. Compressing twice=garbage. What that means
is that your originally digitized files (.avi or QT) will be
very large. This is one reason to keep the files small. A 2
minute uncompressed .avi at 320X240 can be as high as 50MB.

You can cut out the middle step by encoding directly from
your video into a real file if you have enough processor
power. Real recommends a dual pentium to get at 15 fps clip.

>>> Jim Thomas <jthomas@sun.soci.niu.edu> 01/27/98 05:29pm
>>>
On Tue, 27 Jan 1998, Janet Lessner wrote:

> Basically, Real Ed said they
> could encode any length video for us and would charge us
by
> the hour. I just wanted to know what kind of equipment
they
> had to do that. If we could afford to get the equipment,
> could we do it ourselves and avoid their hourly
> charge?

Jay, couldn't this be done with a video capture card and the
appropriate
software? Is so, we looked into it at NIB, and the cost
wasn't at all
prohibitive.

jt