[asterisk-users] 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 their POTS lines has proven to be quite problematic. The hybrids are balanced, txgain and rxgain are optimized individually for all channels, and the vpm module on the card is doing its job. For many calls, this has been effective. Still, echo remains on calls to some destinations, particularly those on the closer exchanges. On calls to one particular number, if I turn the echo canceler off, the echo sounds as loud and clear as if the destination was actually echo(). With the echo canceler on, echo is still very pronounced. The echo tail is clearly longer than 16 ms. I even tried disabling the vpm module (vpmsupport=0 in base.c) and using oslec instead with a setting of echocancel=512. After a long convergence period, oslec seemed to do a slightly better job than the vpm module, but echo was still bad enough to make a conversation nearly impossible. My question for anyone with knowledge on this: would HPEC do a better job than the VPM module (or oslec)? Can HPEC cope with very long echo tails? Thanks, Noah ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- AstriCon 2009 - October 13 - 15 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] HPEC VPM ?
Noah Miller wrote: My question for anyone with knowledge on this: would HPEC do a better job than the VPM module (or oslec)? Can HPEC cope with very long echo tails? HPEC and the Digium VPMADT032 use the same algorithms from the same vendor. -- Kevin P. Fleming Digium, Inc. | Director of Software Technologies 445 Jan Davis Drive NW - Huntsville, AL 35806 - USA skype: kpfleming | jabber: kpflem...@digium.com Check us out at www.digium.com www.asterisk.org ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- AstriCon 2009 - October 13 - 15 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] HPEC VPM ?
My question for anyone with knowledge on this: would HPEC do a better job than the VPM module (or oslec)? Can HPEC cope with very long echo tails? HPEC and the Digium VPMADT032 use the same algorithms from the same vendor. Aha. Thanks for this tidbit, Kevin! Next question: does anybody know how to handle extremely long tail echo that a VPM module cannot? Thanks, Noah ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- AstriCon 2009 - October 13 - 15 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] HPEC VPM ?
Noah Miller wrote: Next question: does anybody know how to handle extremely long tail echo that a VPM module cannot? How long is 'long' in this case? The VPMs and HPEC (and OSLEC) can handle 128ms echo tails, which is pretty darn long. It's rare to see an echo tail longer than that except on very high latency connections, or when the echo is actually acoustically generated by the far end and not by network effects. -- Kevin P. Fleming Digium, Inc. | Director of Software Technologies 445 Jan Davis Drive NW - Huntsville, AL 35806 - USA skype: kpfleming | jabber: kpflem...@digium.com Check us out at www.digium.com www.asterisk.org ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- AstriCon 2009 - October 13 - 15 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] HPEC VPM ?
Next question: does anybody know how to handle extremely long tail echo that a VPM module cannot? How long is 'long' in this case? The VPMs and HPEC (and OSLEC) can handle 128ms echo tails, which is pretty darn long. It's rare to see an echo tail longer than that except on very high latency connections, or when the echo is actually acoustically generated by the far end and not by network effects. I haven't done any real measurement on it, but I believe it's actually longer than 128ms. As I go higher and higher with echocancel values, the echo does get better, but is never totally eliminated. At echocancel=1024, there is still rather pronounced echo on calls in the local exchanges. The calls are also more or less half-duplex at that point because the vpm is filtering out so much of the signal as echo. I may just tell the client to look at a partial PRI. All this echo chasing is getting costly for them. Thanks! Noah ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- AstriCon 2009 - October 13 - 15 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] HPEC VPM ?
Noah Miller wrote: Next question: does anybody know how to handle extremely long tail echo that a VPM module cannot? How long is 'long' in this case? The VPMs and HPEC (and OSLEC) can handle 128ms echo tails, which is pretty darn long. It's rare to see an echo tail longer than that except on very high latency connections, or when the echo is actually acoustically generated by the far end and not by network effects. I haven't done any real measurement on it, but I believe it's actually longer than 128ms. As I go higher and higher with echocancel values, the echo does get better, but is never totally eliminated. At echocancel=1024, there is still rather pronounced echo on calls in the local exchanges. The calls are also more or less half-duplex at that point because the vpm is filtering out so much of the signal as echo. I may just tell the client to look at a partial PRI. All this echo chasing is getting costly for them. Thanks! Noah In cases of really short loops, a loading network has really helped. Artificial cable networks can be designed and inserted in 1/4 mile increments. We have quite a few users using Asterisk directly connected to station lines or incoming selectors with effective loop lengths of a few feet have used artificial cable networks of 1 to 3 miles with great results. Needless to say, this requires an understanding of basic telephony, some electrical engineering and use of stable capacitors and inductors which may be beyond the ability of many. Country and existing loop length, type of cable loading, if any, are all variables to take into consideration, as well as the specific card involved. the condition certainly can be improved, even with the old X100 card! John Novack -- Dog is my co-pilot ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- AstriCon 2009 - October 13 - 15 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] HPEC VPM ?
Noah Miller wrote: Next question: does anybody know how to handle extremely long tail echo that a VPM module cannot? How long is 'long' in this case? The VPMs and HPEC (and OSLEC) can handle 128ms echo tails, which is pretty darn long. It's rare to see an echo tail longer than that except on very high latency connections, or when the echo is actually acoustically generated by the far end and not by network effects. I haven't done any real measurement on it, but I believe it's actually longer than 128ms. As I go higher and higher with echocancel values, the echo does get better, but is never totally eliminated. At echocancel=1024, there is still rather pronounced echo on calls in the local exchanges. The calls are also more or less half-duplex at that point because the vpm is filtering out so much of the signal as echo. Tails are *never* long. Nobody really builds a 128ms canceller. They cancel a few specific sections of delay within a 128ms interval. Typically four 8ms sections - one for each end of the local analogue link, and one for each end of the far analogue link. Things should not get progressively better by gradually lengthening the echo canceller. The echo should basically just disappear when the length is sufficient, and the algorithm can place and tune an 8ms canceller at the right delay. I may just tell the client to look at a partial PRI. All this echo chasing is getting costly for them. If the echo varies with which number you call, its predominantly from the far end. In those cases PRI won't help. You still need to cancel that far end echo. Steve ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- AstriCon 2009 - October 13 - 15 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] HPEC performance
On Wed, Nov 19, 2008 at 03:46:35PM -0700, Joseph L. Casale wrote: Not trivial but not as voodoo as before: http://docs.tzafrir.org.il/dahdi-linux/#_oslec Tzafrir, I pulled down linux-2.6.28-rc5.tar.bz2 and followed the doc, now when compiling I get the following: WARNING: oslec_create [/.../dahdi-linux/drivers/dahdi/dahdi_echocan_oslec.ko] undefined! WARNING: oslec_free [/.../dahdi-linux/drivers/dahdi/dahdi_echocan_oslec.ko] undefined! WARNING: oslec_update [/.../dahdi-linux/drivers/dahdi/dahdi_echocan_oslec.ko] undefined! It seems that the hack that I thought that worked didn't actually work. I think that for the moment just copy the echo directory below dahdi and fix the Kbuild file. -- Tzafrir Cohen icq#16849755 jabber:[EMAIL PROTECTED] +972-50-7952406 mailto:[EMAIL PROTECTED] http://www.xorcom.com iax:[EMAIL PROTECTED]/tzafrir ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC performance
What you might want to do it try OSLEC Gordon, Digium hasn't responded to me with my key to install HPEC after waiting several days, and tonight I need to get the card installed as my number port takes place and that location will be w/o phones. I am using Asterisk 1.6 and DAHDI and from what I see its not trivial to build OSLEC support into DAHDI, has that changed? Thanks for the reco! jlc ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC performance
On Wed, Nov 19, 2008 at 12:57:53PM -0700, Joseph L. Casale wrote: What you might want to do it try OSLEC Gordon, Digium hasn't responded to me with my key to install HPEC after waiting several days, and tonight I need to get the card installed as my number port takes place and that location will be w/o phones. I am using Asterisk 1.6 and DAHDI and from what I see its not trivial to build OSLEC support into DAHDI, has that changed? Not trivial but not as voodoo as before: http://docs.tzafrir.org.il/dahdi-linux/#_oslec -- Tzafrir Cohen icq#16849755 jabber:[EMAIL PROTECTED] +972-50-7952406 mailto:[EMAIL PROTECTED] http://www.xorcom.com iax:[EMAIL PROTECTED]/tzafrir ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC performance
Not trivial but not as voodoo as before: http://docs.tzafrir.org.il/dahdi-linux/#_oslec Tzafrir, Appreciate this pointer, I am intending on setting this up on a CentOS 5 x86 box. The drastically different stock running kernel compared to the files I need from your doc won't be an issue? Also, in searching the net, I see some issues where people complain DAHDI is not as stable as Zap, is this true or no longer the case? Thank you for all the help! jlc ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC performance
Not trivial but not as voodoo as before: http://docs.tzafrir.org.il/dahdi-linux/#_oslec Tzafrir, I pulled down linux-2.6.28-rc5.tar.bz2 and followed the doc, now when compiling I get the following: WARNING: oslec_create [/.../dahdi-linux/drivers/dahdi/dahdi_echocan_oslec.ko] undefined! WARNING: oslec_free [/.../dahdi-linux/drivers/dahdi/dahdi_echocan_oslec.ko] undefined! WARNING: oslec_update [/.../dahdi-linux/drivers/dahdi/dahdi_echocan_oslec.ko] undefined! Any ideas? Thanks! jlc ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC performance
On Wed, 19 Nov 2008, Joseph L. Casale wrote: What you might want to do it try OSLEC Gordon, Digium hasn't responded to me with my key to install HPEC after waiting several days, and tonight I need to get the card installed as my number port takes place and that location will be w/o phones. I am using Asterisk 1.6 and DAHDI and from what I see its not trivial to build OSLEC support into DAHDI, has that changed? I build everything from scratch rather than use supplied packages, so for me, I found it relatively easy. I've only ever tried it under 1.2 too, although this weekend I'm going to put up my first 1.4 test installation... Gordon ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC performance
On Mon, Nov 17, 2008 at 07:11:33PM -0700, Joseph L. Casale wrote: 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. The first thing you should try is reduce the number of taps. But slightly off-topic: If you want to use OSLEC instead, I lately managed to squeese better performance from it using the MMX optimizations: http://bugs.digium.com/view.php?id=13500 http://sourceforge.net/mailarchive/forum.php?thread_name=20081113215314.GM31838%40xorcom.comforum_name=freetel-oslec -- Tzafrir Cohen icq#16849755 jabber:[EMAIL PROTECTED] +972-50-7952406 mailto:[EMAIL PROTECTED] http://www.xorcom.com iax:[EMAIL PROTECTED]/tzafrir ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC performance
On Mon, 17 Nov 2008, Joseph L. Casale wrote: 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. HPEC did make an improvement in some of my cases, but I found the Digium licensing procedure to be a hassle, so switched to OSLEC. What you might want to do it try OSLEC, and if that performs OK for you, then you might consider buying the HPEC licenses - I imagine their code/cpu usage might be the same, but then if you try OSLEC and it works for you, you might not bother with HPEC... Gordon ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
[asterisk-users] 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 opinions appreciated. jlc ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC
Al lists wrote: Just wondering how your experience is with HPEC, Is it just for analog interfaces or we can use it on TE122 as well? We have a customer installation with a partial PRI (12 B Channels) using the HPEC very successfully (before we installed the HPEC the customer complained of significant echo and no amount of tuning the standard Asterisk EC could get rid of all of it). HPEC rocks! -- George Pajari (dCAP), netVOICE communications 604 484 VOIP(8647) x102 www.netvoice.ca www.ip-centrex.ca www.ip-pbx.ca www.vpas.ca www.digium.ca www.grandstream.ca www.sipura.ca www.snom.ca Open Source VoIP/Telephony Specialists 1 877 NET VOIP (638 8647 x102) ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC
Al lists wrote: Just wondering how your experience is with HPEC, Is it just for analog interfaces or we can use it on TE122 as well? The HPEC can be used with any Zaptel-supported interface, but we don't provide free licenses for people to use them with T1/E1 cards, because the potential CPU load running HPEC on 24/30 channels in 128ms mode is quite high and could cause problems on the system. However, if you don't have that many active channels at once, or you have a very powerful system, or many other variables are in your favor, you can certainly give it a try. -- Kevin P. Fleming Director of Software Technologies Digium, Inc. - The Genuine Asterisk Experience (TM) ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
[asterisk-users] HPEC
Just wondering how your experience is with HPEC, Is it just for analog interfaces or we can use it on TE122 as well? ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC
clive.chan(Atn) wrote: 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-XX' for 2 channels. Found valid HPEC licenses for 2 channels. Failed to get license challenge: No such device Any advice well be welcome. I must confess, I've been meaning to give HPEC a try (especially since I apparently can get a free license having purchased a fully loaded TDM400), but I've not got round to it. I've had OSLEC running on my home test machine, does anyone have any idea how the performance compares? ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC
Hi all, I just wanted to share my experience. I tried to mix up the Sangoma A200 with digium HPEC and the result has no changed like before I got the HPPEC, even I had tried to complied the Zaptel code with the tuning that is available. For those who intend to do so, please dont. Btw, Digium support was good for the HPEC installation. Thank you. On Tue, 2008-01-08 at 16:20 +0800, clive.chan(Atn) wrote: 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-XX' for 2 channels. Found valid HPEC licenses for 2 channels. Failed to get license challenge: No such device Any advice well be welcome. ___ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
[asterisk-users] 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-XX' for 2 channels. Found valid HPEC licenses for 2 channels. Failed to get license challenge: No such device Any advice well be welcome. -- Clive Chan Alpha Trilogies Networks Sdn Bhd email: [EMAIL PROTECTED] mobile: 0124086376 office: 046472888 ext: 338 fax: 046472999 ___ --Bandwidth and Colocation Provided by http://www.api-digital.com-- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC
clive.chan(Atn) wrote: The error that I had as bellow; Found key 'HPEC-XX' for 2 channels. Found valid HPEC licenses for 2 channels. Failed to get license challenge: No such device Please contact Digium support for assistance with using HPEC since you purchased it. -- Kevin P. Fleming Director of Software Technologies Digium, Inc. - The Genuine Asterisk Experience (TM) ___ --Bandwidth and Colocation Provided by http://www.api-digital.com-- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC and audioclipping
Eric, Before using this version, did you have audio clipping issues (this version is supposed to solve) ? Weeks ago, we installed HPEC and got such serious audio clipping issues we had to roll back and use standard Echo Cancellation. We can't afford to meet these issues again. Unfortunately, I couldn't find any changelog proving latest HPEC will not behave as the previous one. Testimonies such as yours, are the best mean I could find to convince myself I should plan to upgrade to HPEC again. Today, we have enough for users asking to change but not enough to try something without prior hope. Regards ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC and audioclipping
The latest has the correction of the audio clipping issues. They should be taken care of now. However, if you still see ANY sort of problem with the HPEC with the latest version, be sure to let Digium support know so that we can have it fixed. From the time of getting audio samples to getting a fix the turn around has been VERY quick. --- Matthew Fredrickson Software Engineer Digium, Inc. On Jun 13, 2007, at 5:17 AM, Olivier wrote: Eric, Before using this version, did you have audio clipping issues (this version is supposed to solve) ? Weeks ago, we installed HPEC and got such serious audio clipping issues we had to roll back and use standard Echo Cancellation. We can't afford to meet these issues again. Unfortunately, I couldn't find any changelog proving latest HPEC will not behave as the previous one. Testimonies such as yours, are the best mean I could find to convince myself I should plan to upgrade to HPEC again. Today, we have enough for users asking to change but not enough to try something without prior hope. Regards ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
[asterisk-users] HPEC and audioclipping
Hello, Has anyone tried latest HPEC software with Asterik 1.2 ? It was published a couple of weeks ago to improve clipping issues. Regards ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC and audioclipping
Olivier wrote: Has anyone tried latest HPEC software with Asterik 1.2 ? It was published a couple of weeks ago to improve clipping issues. It works just fine. ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC audio clipping
Eric ManxPower Wieling wrote: What are the advantages of 9.x over the 8.x that I currently use? I was about to ask the same question. What if my 8.x EC works just fine? (Why expose yourself to the possibility that even the patched version fails?) -Stephen- ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC audio clipping
2007/5/16, Stephen Bosch [EMAIL PROTECTED]: As you mentioned, try implementing it only on certain channels, if you can. -Stephen- Hi, Unfortunately, I understood you couldn't allocate HPEC on per channel basis. But anyway, I agree we have to try something. Regards ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC audio clipping
Olivier wrote: 2007/5/16, Stephen Bosch [EMAIL PROTECTED] mailto:[EMAIL PROTECTED]: As you mentioned, try implementing it only on certain channels, if you can. -Stephen- Hi, Unfortunately, I understood you couldn't allocate HPEC on per channel basis. But anyway, I agree we have to try something. Kevin just announced the release of a patched version that is supposed to correct the problem. Kevin P. Fleming wrote: I have just placed HPEC version 9.00.003 onto the Digium FTP site; this release cures the recently discovered bug where incoming audio was choppy or lost completely under specific circumstances (did not affect all users, but if a user's system had the problem it would have it on all calls). -Stephen- ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC audio clipping
There's a new version of HPEC released that fixes the bug. Try updating now :-) Matthew Fredrickson On May 16, 2007, at 2:35 PM, Noah Miller wrote: Hi Olivier - Our last trial was so conclusive (every call was affected), we step back to previous situation without HPEC. We will do our best to help to solve this (gathering audio captures for instance) though it will be very hard for me to convince our customer to try. Being able to to limit HPEC to given channels would have certainly helped to create conditions for customer acceptance. As far as I can tell, no bug is opened on this HPEC audio, though a long thread, a couple of weeks ago, proved us we were not the ones affected. Do you have an old machine and a spare TDM card you could use? Maybe you could connect just one POTS line to another machine and grab some audio captures. Or maybe you can test during off-hours? - Noah ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC audio clipping
What are the advantages of 9.x over the 8.x that I currently use? Matthew Fredrickson wrote: There's a new version of HPEC released that fixes the bug. Try updating now :-) Matthew Fredrickson On May 16, 2007, at 2:35 PM, Noah Miller wrote: Hi Olivier - Our last trial was so conclusive (every call was affected), we step back to previous situation without HPEC. We will do our best to help to solve this (gathering audio captures for instance) though it will be very hard for me to convince our customer to try. Being able to to limit HPEC to given channels would have certainly helped to create conditions for customer acceptance. As far as I can tell, no bug is opened on this HPEC audio, though a long thread, a couple of weeks ago, proved us we were not the ones affected. Do you have an old machine and a spare TDM card you could use? Maybe you could connect just one POTS line to another machine and grab some audio captures. Or maybe you can test during off-hours? ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC audio clipping
2007/5/15, George Pajari [EMAIL PROTECTED]: If you have the clipping issue, make sure you get HPEC version 8.2 from Digium. Note, however, that we have observed stability issues with HPEC 8.2 (two kernel panics in two weeks since installing HPEC). (The 9.00 version had such severe clipping that we could not run it long enough to determine if it was more stable). g. So, what's going on ? Should someone file a bug report, so that we can check progress on this ? We have customers waiting for echo cancellation improvement. As we already tried to use HPEC, it would be very hard to either try something different nor to wait without deadline. So ? ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC audio clipping
Olivier wrote: 2007/5/15, George Pajari [EMAIL PROTECTED] mailto:[EMAIL PROTECTED]: If you have the clipping issue, make sure you get HPEC version 8.2 from Digium. Note, however, that we have observed stability issues with HPEC 8.2 (two kernel panics in two weeks since installing HPEC). (The 9.00 version had such severe clipping that we could not run it long enough to determine if it was more stable). g. So, what's going on ? Should someone file a bug report, so that we can check progress on this ? We have customers waiting for echo cancellation improvement. As we already tried to use HPEC, it would be very hard to either try something different nor to wait without deadline. So ? Um -- Digium is need of sound captures and debug output for this problem, because they are having trouble reproducing it in the laboratory. Perhaps you could help out by making a capture of the clipping phenomenon using the latest Zaptel (1.2.17) and ztmonitor to capture audio on the affected channel. All our cards went into production machines so I can't do this right now. -Stephen- ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [asterisk-users] HPEC audio clipping
Octasic SoftEcho works very well for me. _ From: Olivier [mailto:[EMAIL PROTECTED] Sent: Wednesday, May 16, 2007 6:14 AM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: Re: [asterisk-users] HPEC audio clipping 2007/5/15, George Pajari [EMAIL PROTECTED]: If you have the clipping issue, make sure you get HPEC version 8.2 from Digium. Note, however, that we have observed stability issues with HPEC 8.2 (two kernel panics in two weeks since installing HPEC). (The 9.00 version had such severe clipping that we could not run it long enough to determine if it was more stable). g. So, what's going on ? Should someone file a bug report, so that we can check progress on this ? We have customers waiting for echo cancellation improvement. As we already tried to use HPEC, it would be very hard to either try something different nor to wait without deadline. So ? ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC audio clipping
2007/5/16, Stephen Bosch [EMAIL PROTECTED]: Um -- Digium is need of sound captures and debug output for this problem, because they are having trouble reproducing it in the laboratory. Perhaps you could help out by making a capture of the clipping phenomenon using the latest Zaptel (1.2.17) and ztmonitor to capture audio on the affected channel. All our cards went into production machines so I can't do this right now. -Stephen- Our last trial was so conclusive (every call was affected), we step back to previous situation without HPEC. We will do our best to help to solve this (gathering audio captures for instance) though it will be very hard for me to convince our customer to try. Being able to to limit HPEC to given channels would have certainly helped to create conditions for customer acceptance. As far as I can tell, no bug is opened on this HPEC audio, though a long thread, a couple of weeks ago, proved us we were not the ones affected. ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC audio clipping
On May 16, 2007, at 8:14 AM, Olivier wrote: 2007/5/15, George Pajari [EMAIL PROTECTED]: If you have the clipping issue, make sure you get HPEC version 8.2 from Digium. Note, however, that we have observed stability issues with HPEC 8.2 (two kernel panics in two weeks since installing HPEC). (The 9.00 version had such severe clipping that we could not run it long enough to determine if it was more stable). g. So, what's going on ? Should someone file a bug report, so that we can check progress on this ? We have customers waiting for echo cancellation improvement. As we already tried to use HPEC, it would be very hard to either try something different nor to wait without deadline. So ? I know that ADT (the company that makes the echo cancellation algorithm) has received some of the sample audio files and are working on trying to fix it. We are working hard to solve this problem. All things considered, I have heard (with the new echo canceller) that if you set echocancelwhenbridged=no it makes the problem go away. Have you tried that? Matthew Fredrickson ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC audio clipping
Hi Olivier - Our last trial was so conclusive (every call was affected), we step back to previous situation without HPEC. We will do our best to help to solve this (gathering audio captures for instance) though it will be very hard for me to convince our customer to try. Being able to to limit HPEC to given channels would have certainly helped to create conditions for customer acceptance. As far as I can tell, no bug is opened on this HPEC audio, though a long thread, a couple of weeks ago, proved us we were not the ones affected. Do you have an old machine and a spare TDM card you could use? Maybe you could connect just one POTS line to another machine and grab some audio captures. Or maybe you can test during off-hours? - Noah ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC audio clipping
Olivier: Olivier wrote: Our last trial was so conclusive (every call was affected), we step back to previous situation without HPEC. We will do our best to help to solve this (gathering audio captures for instance) though it will be very hard for me to convince our customer to try. Being able to to limit HPEC to given channels would have certainly helped to create conditions for customer acceptance. As far as I can tell, no bug is opened on this HPEC audio, though a long thread, a couple of weeks ago, proved us we were not the ones affected. There is no bug on this, nor will there ever be. The HPEC is not Digium's software. Digium is only reselling it. If you want to see the problem resolved you'll have to help provide some ztmonitor captures. As you mentioned, try implementing it only on certain channels, if you can. -Stephen- ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC audio clipping
Use the 8.x HPEC. Because this is an issue with a Digium product, the bug is tracked in the Digium bug tracker, not the mantis bug tracker. The mantis bug tracker is for bug reports of Asterisk and other open source Digium projects. Olivier wrote: 2007/5/16, Stephen Bosch [EMAIL PROTECTED]: Um -- Digium is need of sound captures and debug output for this problem, because they are having trouble reproducing it in the laboratory. Perhaps you could help out by making a capture of the clipping phenomenon using the latest Zaptel (1.2.17) and ztmonitor to capture audio on the affected channel. All our cards went into production machines so I can't do this right now. -Stephen- Our last trial was so conclusive (every call was affected), we step back to previous situation without HPEC. We will do our best to help to solve this (gathering audio captures for instance) though it will be very hard for me to convince our customer to try. Being able to to limit HPEC to given channels would have certainly helped to create conditions for customer acceptance. As far as I can tell, no bug is opened on this HPEC audio, though a long thread, a couple of weeks ago, proved us we were not the ones affected. ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC audio clipping
If you have the clipping issue, make sure you get HPEC version 8.2 from Digium. Note, however, that we have observed stability issues with HPEC 8.2 (two kernel panics in two weeks since installing HPEC). (The 9.00 version had such severe clipping that we could not run it long enough to determine if it was more stable). g. -- George Pajari (dCAP), netVOICE communications 604 484 VOIP(8647) x102 www.netvoice.ca www.ip-centrex.ca www.digium.ca www.grandstream.ca www.sipura.ca www.snom.ca Open Source VoIP/Telephony Specialists 1 877 NET VOIP (638 8647 x102) ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC audio clipping
I didn't know that ! Thanks for the tip ! 2007/5/11, Noah Miller [EMAIL PROTECTED]: Our last trial dates from 1.2.17 days (3 weeks ago). My question is : are those HPEC audio clipping issues fixed with 1.2.17.1 ? It's not about the Asterisk version, it's about the HPEC version. According to other posts on the list, HPEC version 8.2 does not have the clipping issues, but the 9.x versions do. The echo updates to Asterisk 1.2.17.1 are to allow troubleshooting of the 9.x versions of HPEC so we can locate where the issues are. The updates do not fix the clipping issues themselves. If you have the clipping issue, make sure you get HPEC version 8.2 from Digium. - Noah 2007/5/9, Matthew Fredrickson [EMAIL PROTECTED]: If you contact Digium tech support directly they will provide you with the previous version of the echo canceler until the fix is made to the current version. Matthew Fredrickson On May 9, 2007, at 7:27 AM, Olivier wrote: Any field return on this ? Our last field trial of HPEC concluded we shouldn't use it at all, due to audio clipping. Is it now fixed ? ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC audio clipping
Our last trial dates from 1.2.17 days (3 weeks ago). My question is : are those HPEC audio clipping issues fixed with 1.2.17.1 ? Regards 2007/5/9, Matthew Fredrickson [EMAIL PROTECTED]: If you contact Digium tech support directly they will provide you with the previous version of the echo canceler until the fix is made to the current version. Matthew Fredrickson On May 9, 2007, at 7:27 AM, Olivier wrote: Any field return on this ? Our last field trial of HPEC concluded we shouldn't use it at all, due to audio clipping. Is it now fixed ? ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC audio clipping
Our last trial dates from 1.2.17 days (3 weeks ago). My question is : are those HPEC audio clipping issues fixed with 1.2.17.1 ? It's not about the Asterisk version, it's about the HPEC version. According to other posts on the list, HPEC version 8.2 does not have the clipping issues, but the 9.x versions do. The echo updates to Asterisk 1.2.17.1 are to allow troubleshooting of the 9.x versions of HPEC so we can locate where the issues are. The updates do not fix the clipping issues themselves. If you have the clipping issue, make sure you get HPEC version 8.2 from Digium. - Noah 2007/5/9, Matthew Fredrickson [EMAIL PROTECTED]: If you contact Digium tech support directly they will provide you with the previous version of the echo canceler until the fix is made to the current version. Matthew Fredrickson On May 9, 2007, at 7:27 AM, Olivier wrote: Any field return on this ? Our last field trial of HPEC concluded we shouldn't use it at all, due to audio clipping. Is it now fixed ? ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC audio clipping
Any field return on this ? Our last field trial of HPEC concluded we shouldn't use it at all, due to audio clipping. Is it now fixed ? ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC audio clipping
If you contact Digium tech support directly they will provide you with the previous version of the echo canceler until the fix is made to the current version. Matthew Fredrickson On May 9, 2007, at 7:27 AM, Olivier wrote: Any field return on this ? Our last field trial of HPEC concluded we shouldn't use it at all, due to audio clipping. Is it now fixed ? ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC audio clipping
- Noah Miller [EMAIL PROTECTED] wrote: 1. A patch allowing capture audio streams in a way that will allow [us] to debug (and presumably fix) the problem was mentioned by Kevin. - Anything new about it ? I couldn't find it in Zaptel 1.2.17.1 nor 1.4.2.1 changelog. I believe it was introduced in Zaptel 1.2.17.1. From the description of zaptel 1.2.17.1 posted to www.asterisk.org: Added the ability to monitor pre-echo cancellation audio with ztmonitor - Noah Yes, you are correct. -- Jason Parker Digium ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
[asterisk-users] HPEC audio clipping
Hello, 1. A patch allowing capture audio streams in a way that will allow [us] to debug (and presumably fix) the problem was mentioned by Kevin. Anything new about it ? I couldn't find it in Zaptel 1.2.17.1 nor 1.4.2.1 changelog. 2. Is there any Mantis bug report allowing someone to track this HPEC audio clipping feature ? It seems to me this hasn't been reported to Mantis yet. Regards ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC audio clipping
1. A patch allowing capture audio streams in a way that will allow [us] to debug (and presumably fix) the problem was mentioned by Kevin. - Anything new about it ? I couldn't find it in Zaptel 1.2.17.1 nor 1.4.2.1 changelog. I believe it was introduced in Zaptel 1.2.17.1. From the description of zaptel 1.2.17.1 posted to www.asterisk.org: Added the ability to monitor pre-echo cancellation audio with ztmonitor - Noah ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC audio clipping
Kevin P. Fleming wrote: The code is done and initially tested; it is being reviewed internally and should be available on Friday or Monday. Will this code be available in 1.2 and 1.4 versions alike ? I can testify it's needed in 1.2. Best regards ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC audio clipping: IMPORTANT DETAIL
Hi, everybody: Stephen Bosch wrote: Kevin P. Fleming wrote: Eric ManxPower Wieling wrote: Any updates on this? The code is done and initially tested; it is being reviewed internally and should be available on Friday or Monday. Under what circumstances would this clipping be present? Is this patch going to be recommended for anybody using HPEC? Guess what *I* noticed today? We've been using the HPEC for about a month now and hadn't had this clipping problem. Today I added two licences. In the process, I noticed that the HPEC version had been updated to 9.x. We'd been using 8.2. Since I'm going through the process of adding the licence, I thought I'd try updating the HPEC. The moral of that story: if it ain't broke, don't fix it. I've confirmed this: hpec-9.00.002 has the clipping problem. hpec-8.20 definitely doesn't. I've implemented and reverted. The clipping makes the phones unusable. I just count my lucky stars that I kept the old archive, or I'd be up the creek right now. What's the word on the patch? -Stephen- ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC audio clipping: IMPORTANT DETAIL
Stephen Bosch wrote: I've confirmed this: hpec-9.00.002 has the clipping problem. hpec-8.20 definitely doesn't. I've implemented and reverted. The clipping makes the phones unusable. This is most definitely helpful information; I can put the 8.20 files back on the FTP site (or make them available via Support) if needed. What's the word on the patch? The patch is _NOT_ an attempt to cure this problem, nor did I advertise it as such. It is a patch to allow us to capture audio streams in a way that will allow us to debug (and presumably fix) the problem. I don't know yet which versions of Zaptel it will be merged into, but it is small enough that it will likely go into both 1.2 and 1.4. The patch is being reviewed by some developers here at Digium and will then be merged, possibly as early as tomorrow evening. Once that is done we can work with one or more of you who are experiencing this problem to get us audio capture files, and we will supply those to the HPEC code creators to find out what is going wrong. ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC audio clipping
Kevin P. Fleming wrote: Eric ManxPower Wieling wrote: Any updates on this? The code is done and initially tested; it is being reviewed internally and should be available on Friday or Monday. Under what circumstances would this clipping be present? Is this patch going to be recommended for anybody using HPEC? -Stephen- ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC audio clipping
Kevin P. Fleming wrote: Eric ManxPower Wieling wrote: I'll be sending Digium support the info they requested later today. I hope it helps. We have a developer working on extending Zaptel to support pre-echo audio capture right now, so that we can work on debugging these issues with real data instead of just conjectures :-) Stay tuned, a patch should be available for testing in the very near future. Any updates on this? ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC audio clipping
Eric ManxPower Wieling wrote: Any updates on this? The code is done and initially tested; it is being reviewed internally and should be available on Friday or Monday. ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [asterisk-users] HPEC audio clipping
No luck yet. No response from Digium support so I guess that they are still waiting for the Zaptel test code. Greg -Original Message- From: Stephen Bosch [mailto:[EMAIL PROTECTED] Sent: Thursday, 12 April 2007 4:52 AM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: Re: [asterisk-users] HPEC audio clipping Greg Siemon wrote: Thanks for the helps Stephen. I was running non standard gains but setting regain and txgain to zero (then reloading chan_zap.so) does not help. I still get the broken audio, in fact sometimes I don't get any audio at all. In testing the server just froze a number of times and had to be rebooted via the power switch. I am using the latest Zaptel 1.2.16 files and the latest fxotune from the 1.4 release and I still see this issue. Very interested to get this working but without the HPEC my server is rock solid (only have to reboot it when I install kernel updates). I don't believe it is my system but am happy to do any testing others may suggest. Have you had any luck with this, Greg? -Stephen- ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC audio clipping
I'll be sending Digium support the info they requested later today. I hope it helps. Greg Siemon wrote: No luck yet. No response from Digium support so I guess that they are still waiting for the Zaptel test code. Greg -Original Message- From: Stephen Bosch [mailto:[EMAIL PROTECTED] Sent: Thursday, 12 April 2007 4:52 AM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: Re: [asterisk-users] HPEC audio clipping Greg Siemon wrote: Thanks for the helps Stephen. I was running non standard gains but setting regain and txgain to zero (then reloading chan_zap.so) does not help. I still get the broken audio, in fact sometimes I don't get any audio at all. In testing the server just froze a number of times and had to be rebooted via the power switch. I am using the latest Zaptel 1.2.16 files and the latest fxotune from the 1.4 release and I still see this issue. Very interested to get this working but without the HPEC my server is rock solid (only have to reboot it when I install kernel updates). I don't believe it is my system but am happy to do any testing others may suggest. Have you had any luck with this, Greg? ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC audio clipping
Eric ManxPower Wieling wrote: I'll be sending Digium support the info they requested later today. I hope it helps. We have a developer working on extending Zaptel to support pre-echo audio capture right now, so that we can work on debugging these issues with real data instead of just conjectures :-) Stay tuned, a patch should be available for testing in the very near future. ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC audio clipping
Greg Siemon wrote: Thanks for the helps Stephen. I was running non standard gains but setting regain and txgain to zero (then reloading chan_zap.so) does not help. I still get the broken audio, in fact sometimes I don't get any audio at all. In testing the server just froze a number of times and had to be rebooted via the power switch. I am using the latest Zaptel 1.2.16 files and the latest fxotune from the 1.4 release and I still see this issue. Very interested to get this working but without the HPEC my server is rock solid (only have to reboot it when I install kernel updates). I don't believe it is my system but am happy to do any testing others may suggest. Have you had any luck with this, Greg? -Stephen- ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC audio clipping
Eric ManxPower Wieling wrote: I am experiencing the same thing. I assumed that I just didn't have a fast enough CPU (2.4 Ghz Celeron Ghz, also tried on a 1.8 Ghz Pentium 4). I am using a T400P with an Adtran TA750 Channel Bank rather than the Digium analog cards. I'm not doing any VoIP on this system, strictly analog and I get echo on calls. I will be working on improving Zaptel next week to allow us to do proper debugging of this issue with the provider of the HPEC code; stay tuned for updates, and those of you are experiencing this problem please ensure that Digium Support is aware of you and can contact you when we have the new Zaptel code available for testing. Thanks! ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC audio clipping
Michael Boers wrote: 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 ameike I am experiencing the same thing. I assumed that I just didn't have a fast enough CPU (2.4 Ghz Celeron Ghz, also tried on a 1.8 Ghz Pentium 4). I am using a T400P with an Adtran TA750 Channel Bank rather than the Digium analog cards. I'm not doing any VoIP on this system, strictly analog and I get echo on calls. ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
[asterisk-users] HPEC audio clipping
Same issue here as well. Running Centos 4.4 (x86_64) with all updates installed on a Pentium D 2.8 GHz, 1.5GB RAM and TDM800P with 1 x Quad FXS and 2 x FXO ports. I installed the new 64 bit HPEC module earlier in the week when it was released and have been unable to get it to work. I have the same symptoms as the OP and also noticed that there is much more line noise (soft static) than when HPEC is disabled. I sent a support request in several days ago and I have not yet seen a reply. Kind Regards Greg ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC audio clipping
Both of the zaptel (1.2 and 1.4) drivers I tried were the latest. Are the older drivers working better? Does anyone have a configuration close to mine that is working? -- Michael Boers On 4/6/07, Eric ManxPower Wieling [EMAIL PROTECTED] wrote: Michael Boers wrote: 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 ameike I am experiencing the same thing. I assumed that I just didn't have a fast enough CPU (2.4 Ghz Celeron Ghz, also tried on a 1.8 Ghz Pentium 4). I am using a T400P with an Adtran TA750 Channel Bank rather than the Digium analog cards. I'm not doing any VoIP on this system, strictly analog and I get echo on calls. ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC audio clipping
Hi: Greg Siemon wrote: Same issue here as well. Running Centos 4.4 (x86_64) with all updates installed on a Pentium D 2.8 GHz, 1.5GB RAM and TDM800P with 1 x Quad FXS and 2 x FXO ports. I installed the new 64 bit HPEC module earlier in the week when it was released and have been unable to get it to work. I have the same symptoms as the OP and also noticed that there is much more line noise (soft static) than when HPEC is disabled. I sent a support request in several days ago and I have not yet seen a reply. I have observed very similar behaviour in an HPEC installation. Some observations: the clipping happens if receive gain is cranked up. If I set the gain to defaults, the clipping goes away, but then I have the problem of users complaining that the remote caller is too quiet. Another recommendation -- whether or not you are using Zaptel 1.2.x or 1.4.x, you should always the fxotune from 1.4.x. A question - do the people who are experiencing this problem have non-default gain settings, either in zapata.conf or in the telephone sets? -Stephen- ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] HPEC audio clipping
In my case, the rx and tx gains are 0. I will try the 1.4 version for fxotune to see if that helps. Thanks for the suggestions! -- Michael Boers On 4/6/07, Stephen Bosch [EMAIL PROTECTED] wrote: Hi: Greg Siemon wrote: Same issue here as well. Running Centos 4.4 (x86_64) with all updates installed on a Pentium D 2.8 GHz, 1.5GB RAM and TDM800P with 1 x Quad FXS and 2 x FXO ports. I installed the new 64 bit HPEC module earlier in the week when it was released and have been unable to get it to work. I have the same symptoms as the OP and also noticed that there is much more line noise (soft static) than when HPEC is disabled. I sent a support request in several days ago and I have not yet seen a reply. I have observed very similar behaviour in an HPEC installation. Some observations: the clipping happens if receive gain is cranked up. If I set the gain to defaults, the clipping goes away, but then I have the problem of users complaining that the remote caller is too quiet. Another recommendation -- whether or not you are using Zaptel 1.2.x or 1.4.x, you should always the fxotune from 1.4.x. A question - do the people who are experiencing this problem have non-default gain settings, either in zapata.conf or in the telephone sets? -Stephen- ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [asterisk-users] HPEC audio clipping
Thanks for the helps Stephen. I was running non standard gains but setting regain and txgain to zero (then reloading chan_zap.so) does not help. I still get the broken audio, in fact sometimes I don't get any audio at all. In testing the server just froze a number of times and had to be rebooted via the power switch. I am using the latest Zaptel 1.2.16 files and the latest fxotune from the 1.4 release and I still see this issue. Very interested to get this working but without the HPEC my server is rock solid (only have to reboot it when I install kernel updates). I don't believe it is my system but am happy to do any testing others may suggest. Kind Regards Greg -Original Message- From: Stephen Bosch [mailto:[EMAIL PROTECTED] Sent: Saturday, 7 April 2007 3:35 AM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: Re: [asterisk-users] HPEC audio clipping Hi: Greg Siemon wrote: Same issue here as well. Running Centos 4.4 (x86_64) with all updates installed on a Pentium D 2.8 GHz, 1.5GB RAM and TDM800P with 1 x Quad FXS and 2 x FXO ports. I installed the new 64 bit HPEC module earlier in the week when it was released and have been unable to get it to work. I have the same symptoms as the OP and also noticed that there is much more line noise (soft static) than when HPEC is disabled. I sent a support request in several days ago and I have not yet seen a reply. I have observed very similar behaviour in an HPEC installation. Some observations: the clipping happens if receive gain is cranked up. If I set the gain to defaults, the clipping goes away, but then I have the problem of users complaining that the remote caller is too quiet. Another recommendation -- whether or not you are using Zaptel 1.2.x or 1.4.x, you should always the fxotune from 1.4.x. A question - do the people who are experiencing this problem have non-default gain settings, either in zapata.conf or in the telephone sets? -Stephen- ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
[asterisk-users] 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 ameike If the taps are set to less than 16, there is no clipping, but there is significant echo. I don't know if this is relevant, but asterisk does report No Zaptel transcoder support on startup. I am at my wits end; any advice would be greatly appreciated. My setup follows: Hardware, AMD Athlon(tm) 64 Processor 3000+, 512MB ram, 2 TDM400p with a total of 5 fxo channels, snom 320 phones OS: gentoo 2006.1 amd64 Software: Asterisk 1.2.17 and Zaptel 1.2.16 (fxotune does not seem to work in this configuration) Also tried Asterisk 1.4.2 and Zaptel 1.4.1 (fxotune does work, but doesn't seem to help in this configuration) ___ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
