On 09/15/2011 10:46 AM, Gustavo Santos wrote:
I understand. I'm interested in simulate the real situation because I'm
doing an academic comparative between algorithms, and is really
interesting have all possible situations.
In the real situation I use a E1 to connect a PBX through a R2 link, so
Ok, I will try to do something like this. Thank you very much for the help.
2011/9/16 Kevin P. Fleming kpflem...@digium.com
On 09/15/2011 10:46 AM, Gustavo Santos wrote:
I understand. I'm interested in simulate the real situation because I'm
doing an academic comparative between algorithms,
I understand. I'm interested in simulate the real situation because I'm
doing an academic comparative between algorithms, and is really interesting
have all possible situations.
In the real situation I use a E1 to connect a PBX through a R2 link, so I
want to try change DAHDI to 10 ms... What
So any software echo canceller available in dahdi isn't good enough?
2011/9/13 Kevin P. Fleming kpflem...@digium.com
On 09/13/2011 08:56 AM, Gustavo Santos wrote:
I'm trying to use Asterisk as a PSTN simulator to run performance tests
for echo cancellation algorithms. I'm using the following
AM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [asterisk-users] High delay from Asterisk as PSTN simulator
So any software echo canceller available in dahdi isn't good enough?
2011/9/13 Kevin P. Fleming kpflem...@digium.com
On 09/13/2011 08:56 AM, Gustavo
On 09/14/2011 10:14 AM, Eric Wieling wrote:
If I read Kevin's post correctly, his statement applies to ALL echo cancellers,
not just software EC.
That's correct; regardless of whether the EC runs on a DSP or on the
host CPU (or is a device in the path of an T1/E1 circuit), if it can
only
I'm trying to simulate the situation:
SIP Asterisk --- PSTN
In this case 16 ms works?
I've read in voip-info: Simplistically, you'd need a tail circuit (the
distance between your echo canceller and the source of the echo) of over
2500 miles to acheive an echo path of 30ms [...]
On 09/14/2011 02:37 PM, Gustavo Santos wrote:
I'm trying to simulate the situation:
SIP Asterisk --- PSTN
In this case 16 ms works?
I've read in voip-info: Simplistically, you'd need a tail circuit
(the distance between your echo canceller and the source of the echo) of
over 2500
I'm trying to use Asterisk as a PSTN simulator to run performance tests for
echo cancellation algorithms. I'm using the following configuration:
SIP - Asterisk 1 Asterisk 2 Echo()
Asterisk 1 and Asterisk 2 are connected using E1. Echo() is the dialplan
application.
The problem is
On 09/13/2011 08:56 AM, Gustavo Santos wrote:
I'm trying to use Asterisk as a PSTN simulator to run performance tests
for echo cancellation algorithms. I'm using the following configuration:
SIP - Asterisk 1 Asterisk 2 Echo()
Asterisk 1 and Asterisk 2 are connected using E1.
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