I'm using bristuffed Asterisk with ISDN/ZAPHFC I have VERY ugly (outgoing) sound through ISDN/HFC if echocancel=yes in zapata.conf, but without echocancel I have bad (incoming) echo Through PSTN/FXO sound is ok with or without echocancel. I tried other echo cancellers (in zconfig.h) two times: ECHO_CAN_KB1 (this was default) ECHO_CAN_MARK2 ECHO_CAN_MG2 after any change I compiled (make clean all && make install) all drivers which are bristuffed, without recompiling Asterisk (should I?), but... ... I always have EXACTLY same (ugly) sound and same (appearing of) echo cancelling. Seems to me that echo canceller do not changing no matter what I choose in zconfig.h. This must be some bristuff echo cancel "patch" to zaptel source? Before I bristuffed Asterisk, I was playing with zconfig.h and I remember that difference between echo canceller were very obvious. Anybody have some knowledge about bristuffed echo cancelling?
James Harper
2006-Jan-14 21:31 UTC
[Asterisk-Users] Ugly echo cancel, with Bristuff/Zaphfc
I'm using zaptel on a x100p card, so my $0.02 may be apply, but I found that if I said echocancel=256 (256 taps), I would end up with horribly distorted outgoing audio (started off okay, but with bad echo, and after about 20 seconds most of the echo was gone but the audio was almost just noise). I went back to 128 and it seemed okay. I haven't tried 64 but you may have more success with that, or a lower power of two. Good luck. James> -----Original Message----- > From: asterisk-users-bounces@lists.digium.com [mailto:asterisk-users- > bounces@lists.digium.com] On Behalf Of Pisac > Sent: Sunday, 15 January 2006 14:57 > To: Asterisk Users Mailing List - Non-Commercial Discussion > Subject: [Asterisk-Users] Ugly echo cancel, with Bristuff/Zaphfc > > I'm using bristuffed Asterisk with ISDN/ZAPHFC > I have VERY ugly (outgoing) sound through ISDN/HFC if echocancel=yesin> zapata.conf, but without echocancel I have bad (incoming) echo > Through PSTN/FXO sound is ok with or without echocancel. > > I tried other echo cancellers (in zconfig.h) two times: > > ECHO_CAN_KB1 (this was default) > ECHO_CAN_MARK2 > ECHO_CAN_MG2 > > after any change I compiled (make clean all && make install) alldrivers> which are bristuffed, without recompiling Asterisk (should I?), but... > > ... I always have EXACTLY same (ugly) sound and same (appearing of)echo> cancelling. > > Seems to me that echo canceller do not changing no matter what Ichoose> in zconfig.h. This must be some bristuff echo cancel "patch" to zaptel > source? Before I bristuffed Asterisk, I was playing with zconfig.h andI> remember that difference between echo canceller were very obvious. > > Anybody have some knowledge about bristuffed echo cancelling? > > _______________________________________________ > --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
You need hardware echo cancel card such as sangoma 104d card to do hardware cannel to fix the bad echo problem. Software solution is not powerful enough at all. Best Regards Matt ____________________________________________ High Performance Gigabit Clustering Appliance http://www.xgforce.com/loadbalancer.html eClustering Service http://www.xgforce.com/eService.html Gigabit 3U Tera Servers http://www.xgforce.com/teraserver.html Gigabit 2U Servers http://www.xgforce.com/server2u.html Gigabit 1U Servers http://www.xgforce.com/server1u.html __________________________________________________ ----- Original Message ----- From: "Pisac" <pisacc@gmail.com> To: "Asterisk Users Mailing List - Non-Commercial Discussion" <asterisk-users@lists.digium.com> Sent: Saturday, January 14, 2006 7:56 PM Subject: [Asterisk-Users] Ugly echo cancel, with Bristuff/Zaphfc> I'm using bristuffed Asterisk with ISDN/ZAPHFC > I have VERY ugly (outgoing) sound through ISDN/HFC if echocancel=yes in > zapata.conf, but without echocancel I have bad (incoming) echo > Through PSTN/FXO sound is ok with or without echocancel. > > I tried other echo cancellers (in zconfig.h) two times: > > ECHO_CAN_KB1 (this was default) > ECHO_CAN_MARK2 > ECHO_CAN_MG2 > > after any change I compiled (make clean all && make install) all drivers > which are bristuffed, without recompiling Asterisk (should I?), but... > > ... I always have EXACTLY same (ugly) sound and same (appearing of) echo > cancelling. > > Seems to me that echo canceller do not changing no matter what I choose > in zconfig.h. This must be some bristuff echo cancel "patch" to zaptel > source? Before I bristuffed Asterisk, I was playing with zconfig.h and I > remember that difference between echo canceller were very obvious. > > Anybody have some knowledge about bristuffed echo cancelling? > > _______________________________________________ > --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 >
On Sun, Jan 15, 2006 at 04:56:57AM +0100, Pisac wrote:> I'm using bristuffed Asterisk with ISDN/ZAPHFC > I have VERY ugly (outgoing) sound through ISDN/HFC if echocancel=yes in > zapata.conf, but without echocancel I have bad (incoming) echo > Through PSTN/FXO sound is ok with or without echocancel.This will probably not help you but this is my experience. I'm using zaphfc with flor'z patch. It works great with 3 zaphfc cards (didn't try more). Only time i noticed problem is when zaphfc shared interrupt with other stuff. On time it shared interrupt with ide controller and there was no way to rid of echo. I moved card to another slot and every thing was perfect. Same thing is when you have more hfc cards make shure that primary card (in case of flor'z patch) doesn't share interrupt.
Tzafrir Cohen
2006-Jan-15 02:21 UTC
[Asterisk-Users] Ugly echo cancel, with Bristuff/Zaphfc
On Sun, Jan 15, 2006 at 04:56:57AM +0100, Pisac wrote:> I'm using bristuffed Asterisk with ISDN/ZAPHFC > I have VERY ugly (outgoing) sound through ISDN/HFC if echocancel=yes in > zapata.conf, but without echocancel I have bad (incoming) echo > Through PSTN/FXO sound is ok with or without echocancel. > > I tried other echo cancellers (in zconfig.h) two times: > > ECHO_CAN_KB1 (this was default) > ECHO_CAN_MARK2 > ECHO_CAN_MG2 > > after any change I compiled (make clean all && make install) all drivers > which are bristuffed, without recompiling Asterisk (should I?), but... > > ... I always have EXACTLY same (ugly) sound and same (appearing of) echo > cancelling. > > Seems to me that echo canceller do not changing no matter what I choose > in zconfig.h. This must be some bristuff echo cancel "patch" to zaptel > source?The bristuff change to zaptel (the kernel level), other than adding kernel modules is very limited. Echo cancelation in itself is done in the kernel space in Zaptel.> Before I bristuffed Asterisk, I was playing with zconfig.h and I > remember that difference between echo canceller were very obvious. > > Anybody have some knowledge about bristuffed echo cancelling?Bristuff does change chan_zap. Something you could try to verify what I have just written is to try working with a bristuffed Zaptel and non-bristuffed Asterisk. This should work. -- Tzafrir Cohen | tzafrir@jbr.cohens.org.il | VIM is http://tzafrir.org.il | | a Mutt's tzafrir@cohens.org.il | | best ICQ# 16849755 | | friend