Re: [asterisk-users] Digium PRI and Echo cancellation
On Wed, Jul 16, 2008 at 1:01 PM, Loic Didelot [EMAIL PROTECTED] wrote: 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? Loic Didelot. dmesg is your friend ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- AstriCon 2008 - September 22 - 25 Phoenix, Arizona Register Now: http://www.astricon.net asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] Digium PRI and Echo cancellation
According to that its using MG2. Shouldnt it be using something like HPEC? Loic On Thu, 2008-07-17 at 07:05 +0100, Eric Dantie wrote: On Wed, Jul 16, 2008 at 1:01 PM, Loic Didelot [EMAIL PROTECTED] wrote: 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? Loic Didelot. dmesg is your friend ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- AstriCon 2008 - September 22 - 25 Phoenix, Arizona Register Now: http://www.astricon.net asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- Loïc DIDELOT MIXvoip S.a. [EMAIL PROTECTED] http://www.mixvoip.com ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- AstriCon 2008 - September 22 - 25 Phoenix, Arizona Register Now: http://www.astricon.net asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] Digium PRI and Echo cancellation
On July 16, 2008 08:01:38 am Loic Didelot wrote: 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? If you load the modules with debug=1 (maybe this appears without it too... not sure): Apr 23 12:52:55 nelson VPM400: Not Present Apr 23 12:52:55 nelson VPM450: echo cancellation for 64 channels Apr 23 12:52:55 nelson VPM450: hardware DTMF disabled. Apr 23 12:52:55 nelson VPM450: Present and operational servicing 2 span(s) Apr 23 12:52:55 nelson Completed startup! Thats on my TE220B. the VPN450 is the hw echo can daughter board. -- Matt Watson http://www.mattgwatson.ca ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- AstriCon 2008 - September 22 - 25 Phoenix, Arizona Register Now: http://www.astricon.net asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] Digium PRI and Echo cancellation
HPEC i see also someone who correct the C code to cancel echo you can find that on google 2008/7/16 Loic Didelot [EMAIL PROTECTED]: 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? [EMAIL PROTECTED]:~# zaptel_hardware pci::0b:08.0 wcte12xp+d161:8000 Wildcard TE121 [EMAIL PROTECTED]:~# ztcfg -v Zaptel Version: SVN-branch-1.4-r4309 Echo Canceller: MG2 Is MG2 the correct one that I am supposed to use? Isn't there something better? Best regards, Loic Didelot. -- Loïc DIDELOT MIXvoip S.a. [EMAIL PROTECTED] http://www.mixvoip.com ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- AstriCon 2008 - September 22 - 25 Phoenix, Arizona Register Now: http://www.astricon.net asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- AstriCon 2008 - September 22 - 25 Phoenix, Arizona Register Now: http://www.astricon.net asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] Digium PRI and Echo cancellation
Hi Loic - According to that its using MG2. I think it will say MG2 regardless of whether or not there is a hardware module present. Shouldnt it be using something like HPEC? I don't think the hardware echo cancellers use the HPEC algorithm. As Eric and Matt have mentioned, dmseg will tell you if a hardware echo cancel module is being loaded. - Noah ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- AstriCon 2008 - September 22 - 25 Phoenix, Arizona Register Now: http://www.astricon.net asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] Digium PRI and Echo cancellation
I believe HPEC actually is the same algorithm (G.168) that the HW echo cancel modules use.. the difference being that HPEC uses up CPU cycles and its performance will be impacted on a system with higher CPU load, whereas the HW modules have a dedicated DSP for it. http://blogs.digium.com/2007/09/06/fun-with-hpec/ -- Matt On Thu, Jul 17, 2008 at 10:00 AM, Noah Miller [EMAIL PROTECTED] wrote: Hi Loic - According to that its using MG2. I think it will say MG2 regardless of whether or not there is a hardware module present. Shouldnt it be using something like HPEC? I don't think the hardware echo cancellers use the HPEC algorithm. As Eric and Matt have mentioned, dmseg will tell you if a hardware echo cancel module is being loaded. - Noah ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- AstriCon 2008 - September 22 - 25 Phoenix, Arizona Register Now: http://www.astricon.net asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- AstriCon 2008 - September 22 - 25 Phoenix, Arizona Register Now: http://www.astricon.net asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] Digium PRI and Echo cancellation
Matt Watson wrote: I believe HPEC actually is the same algorithm (G.168) that the HW echo cancel modules use.. the difference being that HPEC uses up CPU cycles and its performance will be impacted on a system with higher CPU load, whereas the HW modules have a dedicated DSP for it. G.168 is not an algorithm. Its a test spec. Steve ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- AstriCon 2008 - September 22 - 25 Phoenix, Arizona Register Now: http://www.astricon.net asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
[asterisk-users] 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? [EMAIL PROTECTED]:~# zaptel_hardware pci::0b:08.0 wcte12xp+d161:8000 Wildcard TE121 [EMAIL PROTECTED]:~# ztcfg -v Zaptel Version: SVN-branch-1.4-r4309 Echo Canceller: MG2 Is MG2 the correct one that I am supposed to use? Isn't there something better? Best regards, Loic Didelot. -- Loïc DIDELOT MIXvoip S.a. [EMAIL PROTECTED] http://www.mixvoip.com ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- AstriCon 2008 - September 22 - 25 Phoenix, Arizona Register Now: http://www.astricon.net asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] Digium PRI and Echo cancellation
Loic Didelot wrote: 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? Easiest way is to eyeball the card. If your card has a daughter board on it, then it's almost certainly got echo cancellation. ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- AstriCon 2008 - September 22 - 25 Phoenix, Arizona Register Now: http://www.astricon.net asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
