Displaying 20 results from an estimated 1000 matches similar to: "The High Performance Echo Canceller (HPEC)"
2007 Aug 25
2
Asterisk 1.2 + Zaptel 1.4 + HPEC = Crash?
Hello,
Has anyone tried the combination of asterisk 1.2.24, zaptel 1.4.5 and
HPEC 9.00.003?
In particular, with a hardware configuration similar to:
Module 0: Installed -- AUTO FXO (FCC mode)
Module 1: Installed -- AUTO FXO (FCC mode)
Module 2: Installed -- AUTO FXO (FCC mode)
Module 3: Not installed
Found a Wildcard TDM: Wildcard TDM400P REV I (3 modules)
I have two fully independent systems
2007 Apr 05
9
HPEC audio clipping
I have recently moved an asterisk system to a new location. This location
is experiencing terrible echo. I installed the HPEC from Digium but that
has caused a new problem.
When HPEC is enabled and more that 16 taps are used, the audio from the
outside caller gets clipped. Instead of hearing:
Hello, my name is Mike
one hears
He o, m ame ike
If the taps are set to less than 16, there
2008 Jan 08
3
HPEC
Hi all,
Just want to check from the list experienced personal about the Digium
HPEC, where I had purchased the HPEC and wish to run with TDM card
Sangoma A200. I can't install HPEC to run with Sangama A200 card, even I
had changed my hpec file from i686 to i386.
The error that I had as bellow;
> Found key 'HPEC-XXXXXXXXXX' for 2 channels.
> Found valid HPEC licenses for 2
2007 Mar 20
1
Can't Compile w/HPEC
Hi All -
I've been trying to compile Zaptel w/ HPEC, but I've been
unsuccessful. The system is CentOS 4.4, zaptel version 1.2.15. I
believe I've got all the requisite files, and they're in the right
locations in the zaptel tree. When I compile, I get the following
warning from make:
Warning: could not find /usr/src/zaptel-1.2.15/hpec/.hpec_x86_32.o.cmd
for
2009 Jul 29
2
HPEC > VPM ?
Hi -
I had a client recently move their asterisk system (asterisk 1.4.26,
dahdi 2.2.0.1, aex800 w/vpm module) to a "new" location, a building
that's nearly 150 years old. I was not personally able to go there,
but the person who did the move said the building's demarc room was
"scary"-- water leaks, jumbled and frayed wiring, and all sorts of
other fun.
The echo on
2007 Feb 16
1
64 bit HPEC modules available?
I am running 64 bit linux on my Asterisk box and would like to get the new
HPEC software running on it. However, while there are 32 bit modules
available, there are no 64 bit modules on the ftp site:
http://ftp.digium.com/pub/telephony/hpec/64-bit/
In some places on the digium website it states 32 bit only and other places
including the documentation it states 32 & 64 bit are available.
2009 Nov 17
1
Question about OSLEC or HPEC with AsteriskNow
I was previously using an old computer running Asterisk 1.2 with
zaptel. Once the CPU fried I switch to a new computer and I chose
AsteriskNow 1.5 running in 64bits to simplify the installation
process. I manage to find my way with configuring dahdi instead of
zaptel and to switch all my previous config to the new computer. Now
everything is fine except that even if I use the md2 echo
2010 Jul 14
1
Dahdi Echo canceller setup
Hi
I have a TDM400 and 4 channels of HPEC. I don't use the POTs lines
much so I didn't realize it wasn't working. This morning I was
watching the console and noticed that the echo canceller didn't load
when a call came in. /etc/dahdi/system.conf showed mg2 for all 4
channels. I changed them all to hpec and then restarted dahdi and
Asterisk and suddenly HPEC was working.
Is
2008 Feb 15
2
HPEC
Just wondering how your experience is with HPEC,
Is it just for analog interfaces or we can use it on TE122 as well?
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20080214/3f0580f1/attachment.htm
2008 Jul 16
5
Digium PRI and Echo cancellation
Hello,
I would like to double check what Echo Cancellation my Digium Card uses.
I thought I bought the little more expensive card that integrates
EchoCancellation. How can I check?
root at sn1:~# zaptel_hardware
pci:0000:0b:08.0 wcte12xp+ d161:8000 Wildcard TE121
root at sn1:~# ztcfg -v
Zaptel Version: SVN-branch-1.4-r4309
Echo Canceller: MG2
Is MG2 the correct one that I am supposed
2008 Apr 25
1
choopy audio when both side talk at the same time
Hi
I have a server with the last version of asterisk branches, zaptel
branches, 2 Digium Card with TDM800P
16 HPEC channels (Echo Cancelation), 40 Grandstream BT200 and 10
Grandstream GXP2000.
zapata.conf
echocancel=64
rxgain=0
txgain=0
when i place a call o receive a call, I finish a sentence i hear a
ssssssss, AND when the both side talks at
the same time i have choppy audio.
Any
2010 Aug 23
1
Dahdi install gone wrong
The card you installed has FXO or FXS modules in it ????? are you getting
your lines directly from the telco co???
Doug D
On Mon 23/08/10 8:37 AM , Cassius Smith cassius at cassius.org sent:
* -----Original Message-----
* From: Todd Reese
* Reply-to: Asterisk Users Mailing List - Non-Commercial
Discussion
* To: asterisk-users at lists.digium.com [3]
* Subject: [asterisk-users] Dahdi
2007 Jun 26
1
zaptel 1.2.18 and HPEC
Any idea why I can't build HPEC for zaptel 1.2.18?
It builds fine with 1.4.3...
PaulH
2007 Apr 13
1
Bristuff and HPEC
Hello,
Are HPEC (ie zaptel 1.2.X) and bristuff compatible ?
And the results ?
Regards
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20070413/b5adde2a/attachment.htm
2007 Feb 13
2
Customisable In-band ringing?
All,
Using SIP with progressinband=yes I get Asterisk to generate the ringing
sound for callers. However, I was wondering if it is possible to
configure what is 'played back' to the calling party? i.e. instead of
just 'ring ring' could I potentially play back a song from an MP3, WAV
or GSM file? I'm thinking it would be quite cool to offer a customised
'ring'
2006 Jun 20
10
TE420P/TE415P?
Hi,
I just read a pressrelease from VON that Digium will soon be releaseing
a couple of new cards. What got me interested was: "The TE420P and
TE415P support 128ms of G.168 (2002)-compliant echo cancellation across
their entire 128 channels."
Does anyone know when thease will be released and what they will cost
when released? Thanks!
2007 Mar 24
2
TDM analog cards, volume, echo, fxotune, ztmonitor and HPEC
Hi, everyone:
I am developing a system using Asterisk, TDM-400 analog cards, analog
lines, and Polycom SIP phones for internal extensions.
Initially there was bad echo but after a series of efforts, I've managed
to reduce it to a negligible level (it only happens when both parties
speak simultaneously, and even there, only for a few hundred
milliseconds). From an echo standpoint, things are
2006 Oct 30
3
Grandstream ATA 286 tdm400 and Asterisk 1.2-13
Hi people,
I would like to read your suggestions as to where the issue might be.
ATA286=Grandstream Budgetone ATA 286 in SIP mode. One Lan Port and one FXS port.
TDM04B= 4 FXO signal fxls
There is a 8FXO-to-SIP unit in this scenario that works perfectly so i
will not make mention of it.
PSTN----VOIPprovider---Internet---ATA286------tdm04b---Asterisk1.2.-13
Asterisk is being used as a meetme
2008 Nov 18
2
HPEC performance
Does this make a significant improvement? The box in question I was going to
try this with has a 4 port TDM card w/ plenty of horsepower, but I do intend
to later migrate to a Soekris unit running Astlinux and therefore might not have
the power to run it after. If the difference is significant, I may move to an ITX
board so I could use a bigger CPU, but only if the hassle is worthwhile.
Any
2007 Mar 15
2
Help! Echo problem even at T1 PRI?
Hello,
We have an asterisk setup at our client's site using a TE205P. The line to
telco is a 23 channels T1 PRI, however the line has random echo problems
(about 5-10% of the calls)!
Can anybody tell me if echo cancellation is really needed even at a T1 PRI
to the telco? Because people keep saying when they deploy voip solution in
Hong Kong using T1 PRI, there is no need of echo cancellation.