Transcoding is essentially, as you say, the conversion of a signal encoded
with one codec into the same (or as close as possible) signal encoded with a
different codec.
The analog<->digital transfer part of things that you mentioned would be
referred to as encoding and/or decoding of a signal.
To answer the question about a call encoded end to end with the same
codec, it would be accurate to say that there is no transcoding taking place
(hopefully).
Hope that helped... Please correct me if I stated anything wrongly.
Sincerely,
Matthew Farley <[EMAIL PROTECTED]>
Sent from BlackBerry® wireless device
-----Original Message-----
From: Carla Schroder <[EMAIL PROTECTED]>
Date: Thu, 7 Dec 2006 18:41:07
To:[EMAIL PROTECTED]
Subject: [Astlinux-users] transcoding question
I'm having trouble getting a grip on what transcoding is. Searching Google is
interesting- meelyuns of vendors offering expensive transcoding widgets.
How does it apply to Astlinux and VoIP? Is it converting one codec to a
different one, like G.729 to G.711, or converting analog to digital, or what?
If your VoIP call is the same from end to end, for example G.726 from
endpoint to endpoint, does any transcoding even occur?
thanks much...
--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Carla Schroder
Linux geek and random computer tamer
check out my Linux Cookbook!
http://www.oreilly.com/catalog/linuxckbk/
best book for sysadmins and power users
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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