Gilad Ben-Yossef wrote:
ik wrote:
On Thu, Jun 12, 2008 at 1:12 PM, Gilad Ben-Yossef <[EMAIL PROTECTED]> wrote:
ik wrote:
The Skype codec is high-availability codec, that is, it attempt to
compress the audio (and video) and giving your CPU to work a lot more,
while trying to keep law bandwidth.
hmm... nope. Not really.
Skype uses a proprietary wide band codec supplied by a third company
company called GIPS. The entire point of a wide band codec is to make use
of high bandwidth usage of DSL/Cable and above lines to deliver a better
sound quality then regular land lines.
Actually they use both iLBC and iSAC. I knew only on iSAC. iLBC is a
broadband codec, while iSAC is using the CPU.
Ahm.. sorry, but you seem to be wrong again.
Skype *licensed* both iLBC and iSAC from their creator GIPS along with
a whole bunch of other codecs and others code. They seem to be using
iSAC exclusively, however, as iLBC is neither wide band not variable
rate, two things skype protocol are.
hmm.. seems I wrote too soon and skype are using iLBC as well as iSAC
(probably is situations where the bandwidth is low). Sorry about that.
iLBC is still a low band codec, though :-)
Gilad
--
Gilad Ben-Yossef
Chief Coffee Drinker
Codefidence Ltd.
The code is free, your time isn't.(TM)
Web: http://codefidence.com
Email: [EMAIL PROTECTED]
Office: +972-8-9316883 ext. 201
Fax: +972-8-9316885
Mobile: +972-52-8260388
Q: How many NSA agents does it take to replace a lightbulb?
A: dSva7DrYiY24yeTItKyyogFXD5gRuoRqPNQ9v6WCLLywZPINlu!
