Hello Matthew,
It is always nice to see improvements. I look forward to testing your
patches.
It just seems that so many other hardware manufacturers have tackled
the
problem, I am surprised digium has not put more research into getting
the issue solved in software, which is possible, as opposed to coming
up
with alternate solutions.
Greg
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Matthew
Fredrickson
Sent: Thursday, October 27, 2005 1:59 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [Asterisk-Users] Echo Canceller question- is there a
viablesolution?
On Oct 27, 2005, at 12:38 AM, [EMAIL PROTECTED] wrote:
My question is, what is the direction in relation to analog boards and
such?
Right now, it looks like the current fad of the asterisk group is
hardware echo cancelation. However, there is work that is occurring on
the software echo cans to improve them. In fact, I just committed
basically an update to
KB1
(which was until now the latest and greatest version of MEC2) that is
supposed to provide somewhat significant improvements.
Quite a few people tend to have difficulties with echo, and although
the WIKI has some very helpful advice, from a business standpoint I
would think that it would be an important step to come up with a final
solution to the problem.
Many companies who make the higher end equipment seem to have tackled
the issue on their hardware.
Do we know if digium is spending time on solving the issue? For
example, having a tool to run on a digium analog or t1 board to
analyze the line statistics and come up with the proper gain settings
could be extremely helpful.
Such a tool would require a firm knowledge of the causes and solutions
to echo however, but I would assume that digium should have a grasp on
this.
It just seems difficult to suggest to companies to use an asterisk
based solution (if they do not use pri) when there is the possibility
that an installation will have issues with echo.
At this point, it feels more like a trial experience to eliminate echo
in various environments.
Unfortunately, that's the way it is right now. Getting to the point
where you have enough knowledge to be able to work on these things is
not an insignificant task.
It seems like we're slowly getting there, and now that we have some
more
interest on improving the software echo cans we might be a little be
closer to getting to the point where it "just works".
I have used local tone from the CO to help narrow things down, but a
tool that would loop dial a line and do an analysis could reduce the
implementation time from days to hours.
Well, there isn't anything that does the "whole job" right now.
There's a bunch
of pieces that go together, and if you have the necessary knowledge of
how to put the pieces together, you can get pretty close to it "just
working".
It's not that
bad though, one can also see it as job security as well :-)
Matthew Fredrickson
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