Interesting, I seem to have gotten more 'artifact' complaints after switching to the svn trunk MG2 echo canceler, I just tested with the echo canceler turned off completely, the artifacts are still there. I haven't heard the loud buzzing sound since I stopped using the aggressive canceler. I've also tested with echocancel=256 per your suggestion to see if I can reproduce it, the little blips are still there, just heard one after being on hold for 3 min 30 secs. but no more loud buzzing :)
I just heard a different artifact, the blip turned into a buzz and the sound (hold music) coming in repeated itself about 3 times. sorta like this: "...your call will be answered as *digital sounding beep*quickl*quickl*quickly as possible...." Next up I'm going to try a different mainboard with only one TDM card in it. On Mon, 2006-02-13 at 10:40 +1100, Mike Pollitt wrote: > Hi Gerard -- > > I found that I get the really loud buzzing sound in the handset earpiece > when I set echocancel=256 instead of echocancel=yes (the default = 128 > taps). > > It seemed to occur irrespective of the actual echo canceller chosen. > > Mike. > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Gerard Saraber > Sent: Saturday, 11 February 2006 2:04 AM > To: Asterisk Users Mailing List - Non-Commercial Discussion > Subject: Re: [Asterisk-Users] odd 'digital' sound artifacts > > So nobody heard these before? or did I do something stupid that anyone > should know and nobody wanted to yell at me for it ;) > > On Wed, 2006-02-08 at 12:54 -0600, Gerard Saraber wrote: > > Hi, > > I've got some weird sound artifacts happening during calls, they're very > > hard to describe, so I have a 122kb recording: > > http://openprojects.rarcoa.com/~miztic/artifact.wav > > normally the artifacts are just short blips, not quite as long as the > > one above, but they sound the same. > > When using the aggressive echo suppressor, it seems like those artifacts > > cause a really loud buzzing sound to come out of the cisco phone, pretty > > much made using the aggressive canceler impossible to use, it's too bad > > because it worked the best out of all of them, mark3 works ok but still > > gives echos on at least 20% of the calls. > > > > I thought they might be caused by IRQ sharing, so I pulled one of the > > TDM400P cards out and made sure the remaining two were on their own IRQ, > > the artifacts were still there. I've also tried running a kernel with > > all the low-latency stuff turned on, and the same kernel with it all > > turned off (2.6.16-rc2) doesn't appear to make any difference either. > > I'm not sure what else to try, any input would be appreciated. > > > > Thanks, > > Gerard Saraber > > [EMAIL PROTECTED] > > > > hardware: > > AMD64 1.8Ghz 512M ram > > MSI nforce3 socket 754 mainboard > > 3 Digium TDM400P cards, 10 FXO + 2 FXS modules > > > > /proc/interrupts > > CPU0 > > 0: 2784232 IO-APIC-edge timer > > 1: 8 IO-APIC-edge i8042 > > 8: 0 IO-APIC-edge rtc > > 9: 0 IO-APIC-level acpi > > 177: 71552 IO-APIC-level eth0 > > 185: 9412 IO-APIC-level libata, NVidia CK8S > > 193: 0 IO-APIC-level ehci_hcd:usb1 > > 201: 0 IO-APIC-level ohci_hcd:usb2 > > 209: 0 IO-APIC-level ohci_hcd:usb3 > > 217: 5577811 IO-APIC-level wctdm, wctdm > > 225: 2769262 IO-APIC-level wctdm > > > > lspci (for completeness): > > > > 02:07.0 Network controller: Tiger Jet Network Inc. Tiger3XX Modem/ISDN > > interface > > Subsystem: Unknown device b119:0001 > > Flags: bus master, medium devsel, latency 32, IRQ 217 > > I/O ports at ac00 [size=256] > > Memory at fdeff000 (32-bit, non-prefetchable) [size=4K] > > Capabilities: [40] Power Management version 2 > > > > 02:09.0 Network controller: Tiger Jet Network Inc. Tiger3XX Modem/ISDN > > interface > > Subsystem: Unknown device b119:0001 > > Flags: bus master, medium devsel, latency 32, IRQ 225 > > I/O ports at a800 [size=256] > > Memory at fdefe000 (32-bit, non-prefetchable) [size=4K] > > Capabilities: [40] Power Management version 2 > > > > 02:0a.0 Network controller: Tiger Jet Network Inc. Tiger3XX Modem/ISDN > > interface > > Subsystem: Unknown device b119:0001 > > Flags: bus master, medium devsel, latency 32, IRQ 217 > > I/O ports at a400 [size=256] > > Memory at fdefd000 (32-bit, non-prefetchable) [size=4K] > > Capabilities: [40] Power Management version 2 > > > > > -- > Regards, > Gerard Saraber > Network Admin, Rarcoa, Inc. > (630) 654-2580 x11 > [EMAIL PROTECTED] > > _______________________________________________ > --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 > -- Regards, Gerard Saraber Network Admin, Rarcoa, Inc. (630) 654-2580 x11 [EMAIL PROTECTED] _______________________________________________ --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
