[Asterisk-Users] odd 'digital' sound artifacts

[Anthony Rodgers]

Your output looks like you have 3 cards, two of which are sharing 
interrupts - or am I missing something?

On Feb 10, 2006, at 7:04 AM, Gerard Saraber wrote:

> 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
> > gsaraber at rarcoa.com
> >
> > 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
> gsaraber at rarcoa.com
>
> _______________________________________________
> --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