Re: Improving Video Quality

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On Sun, 5 Nov 2006 11:33:55 -0800, Eran wrote:

Hi,

With today's high-speed DSL and cable, why is the Netmeeting video quality
so poor?

I think there are a number of issues -- one is that "high-speed DSL and
cable" is not as high speed as it seems -- usually speeds are asymetric
with the high speed on the incoming side. The real time bandwidth available
also varies with network conditions (and non real time applications like
web viewing tend to be able to compensate without user visible effect).

There are programs though that do a better job under the same conditions
(Skype and Msn Messenger for example) but they have had the benefit of more
and more recent development (NetMeeting development ended in 1999).




Why isn't the other party seeing my video with the same quality that
netmeeting displays in the "My Video" window that previews what I am
sending?

I think that will always be the case -- as the outgoing network bandwidth
will never match the bandwidth to the local display.



The video window size is so small, that you would expect perfect
reproduction on the other side.

Why would you think that?

I am not sure what size window you are capturing or displaying at locally
but even with the very smallest the amount of bandwidth to required to
transmit video in real time is very large (hence the need for compression
to deal with bandwidth and protocols to deal with loss or lateness of data
arrival at the receiving end).



Can video quality be improved, or is this simply because netmeeting is so
old?


There are probably some things that could be done to gain marginal
improvemnts but I think the "netMeeting is so old" comment really is the
telling thing. Not much you could do will signifigantly improve the
quality.

Will a newer camera produce better quality?


Possibly -- "quality" is a subjective thing though. I doubt whether a
different camera would make a difference worth the price (but I don't know
what camera you have now and what "quality" you are seeing or wanting).


--
Brian Sullivan
Courses by Wire (http://www.coursesbywire.com)
.

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