[Ilugc] Video chat in linux?
girishvenkatachalam at gmail.com
Wed Nov 1 13:03:36 IST 2006
On Wed, Nov 01, 2006 at 09:55:37AM +0530, Natarajan V wrote:
> As of now, I use aMSN (http://amsn.sf.net) for Video ( 2x half duplex)
> and I use Skype/Jamin for Voice.
> And yes, I have tried to use GnomeMeeting from my home to connect to a
> WinXP-> M$ Net Meeting, and was quite successful with Voice and Video,
> but no text chat. The advantage is that you can see how much of band
> width is in use. The flip side was that the Video and Voice quality
> was very pathetic over my internet connection. Gnome Meeting/Net
> meeting uses the regular GSM compression algorithms for voice
> compression. It is no where near the voice quality of Skype. But if
> you have a very good bandwidth every tool is the same.
I am talking theory so I am bound to be mistaken. :-)
<Begin textbook theory>
Even the worst ever vocodec G.711 needs not more than 64 kilo bits per second.
And I am guessing that every single broadband user has at least that much uplink speed available.
This explains quite well whey even dialup users get good performance with VoIP.
G.711 is very good of course and if you CELP(Code Excited Linear Prediction) then you could even make do with just 8 kilobits per second but the voice quality may not be great of course.
I have no idea what codec is used by Skype. I know for sure they also encrypt and compress, so I am guessing it is something proprietary based on one of the various codecs out there. Perhaps some speex hacker can help?
<End of textbook theory>
Now, how do you explain your problem?
Does M$ do something stupid as usual to goof things up? :-)
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