[asterisk-users] Meetme voice quality problems

[Jaswinder Singh]

Ubuntu has a real time kernel in repository "apt-get install linux-rt" . So
you dont need to recompile . I think debian should also have one in
repository , or u can manually compile a real time enabled kernel . Here's
what is shows with real time patched  kernel .

 dmesg|grep ztdummy
[   53.293071] ztdummy: Trying to load High Resolution Timer
[   53.293076] ztdummy: Initialized High Resolution Timer
[   53.293078] ztdummy: Starting High Resolution Timer
[   53.293080] ztdummy: High Resolution Timer started, good to go

 zttest
Opened pseudo zap interface, measuring accuracy...
100.000000% 99.987793% 99.792480% 99.780273% 99.987793% 99.975586%
99.987793%
99.987793% 100.000000% 100.000000% 100.000000% 99.987793% 99.987793%
99.987793% 100.000000%
100.000000% 99.987793% 100.000000%
--- Results after 18 passes ---
Best: 100.000000 -- Worst: 99.780273 -- Average: 99.969482



On Feb 2, 2008 10:27 PM, Administrator TOOTAI <admin at tootai.net> wrote:

> Matthew J. Roth a écrit :
> > Administrator TOOTAI wrote:
> >
> >> This is not true if you're using B410P cards. We always face timing
> >> problem as we can't -Asterisk stability issues- add X100P or TDM400P
> >> with those cards
> >>
> > Daniel,
> >
> > I thought that using an empty TDM400P as a timing source may no longer
> > be the best solution due to the emergence of new stable timing sources
> > (such as HPET), but this is an interesting issue.  Are you stating that
> > you can't put an X100P or a TDM400P with no lines attached alongside a
> > B410P because it impacts the stability of Asterisk?
> Yes
> >  Do you have any
> > idea why?
> No
> >  Can't the B410P be used as a timing source?
> No
> >  What have you
> > done to provide stable timing?
> >
> ztdummy, not always stable :-(
> > I know that's a lot of questions, but I'm genuinely curious.
> ;-)
> >   It seems
> > very strange that a TDM400P in timingonly mode and no lines attached
> > would have any impact on Asterisk's stability.
> >
> I have to add that this is mainly true with 2 B410P in the server or
> with B410P in amd64 machines. Seems also that Debian Etch with a 2.6.18
> kernel is not the best :-(
> --
> Daniel
>
> _______________________________________________
> -- 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
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20080203/f446e8cc/attachment-0001.htm