That's beyond me... I just know that playing of outbound audio is controlled by that timing clock.
We need a guru to confirm or deny. tim On Dec 13, 2006, at 11:37 AM, Yuriy Popov wrote: > How to check whether it's wrong or not? > Thanks, > Yury. > > --- Timothy McKee <[EMAIL PROTECTED]> wrote: > >> sounds like an issue with ztdummy, the timing source >> for outbound audio. >> >> tim mckee >> >> On Dec 13, 2006, at 10:27 AM, Bruce Robertson wrote: >> >>> We are trying to solve an issue affecting Astlinux >> installed on a >>> Soekris 4801-60 (266 MHz, 256MB RAM, booting off a >> CF card). We used >>> Astlinux as the basis for an IVR application - it >> basically plays a >>> series of sound files for a caller. Most >> everything works great in the >>> application, but it is plagued by the sound the >> caller hears - the >>> sound >>> breaks up. It is also playing the sound files, one >> after another, more >>> slowly than it should. I’m hoping someone will >> have advice, since >>> nothing we try has solved the issues - especially >> of the audio >>> breaking up. >>> >>> We’re using Astlinux ver 0.3. Running the >> application on both a voip >>> connection (a byod provider) and on a POTS line >> with a handytone 488. >>> Sound files are G.711 ulaw. The source files (the >> original wav files) >>> are good quality (I have a digital recording >> studio which is used to >>> create telephony audio all day) On the voip >> connection, the audio >>> quality is very poor, and the call breaks up >> rather badly. On the POTS >>> connection, using the handytone, the audio quality >> is much better, and >>> fewer breakups. But that is only when there is one >> caller on the >>> system. >>> If, for example, we call in on both the POTS line >> and the voip >>> connection simultaneously, BOTH calls break up >> badly, and both seem to >>> hesitate when going from one sound file to the >> next. And we have >>> tested >>> with only 2 calls at a time. Can’t imagine how bad >> it would be if >>> we had >>> 5 callers on the system at once. >>> >>> net4801 works in "Asterisk-Only mode" with eth0 >> connected to internet. >>> net4801 uses second ethernet port (eth1) to >> connect to Handytone-488, >>> which works like a bridge allowing net4801 to >> terminate calls from >>> PSTN >>> line. We bring up eth1 manually using ifconfig >> (INTIF is commented out >>> in rc.conf), so there is no firewall or dhcp >> server running on eth1. >>> >>> Our first thought was that the voip provider is >> poor, we are losing >>> packets, the net connection isn’t fast enough - >> all those things. But >>> the problem of breaking up also affects the POTS >> call, which has >>> nothing >>> to do with voip. >>> >>> It almost seems like the Soekris 4801 isn’t >> powerful enough to run >>> this >>> application (which is really nothing but Astlinux >> with a bit of >>> code on >>> the side). But when we check CPU usage while a >> call is in progress, it >>> shows about 95% of CPU processing UNused. It’s >> seems like the CPU >>> is not >>> straining at all to process the call - it just >> sounds like it is when >>> you hear it on a phone. >>> >>> By the way, these issues occur on two separate >> Soekris 4801's that are >>> both running the same application in different >> locations. >>> >>> Can anyone suggest a solution? Thanks! >>> >>> Bruce Robertson >>> _______________________________________________ >>> Astlinux-users mailing list >>> [email protected] >>> >> > http://lists.kriscompanies.com/mailman/listinfo/astlinux-users >>> >>> Donations to support AstLinux are graciously >> accepted via PayPal to >>> [EMAIL PROTECTED] >> >> ============= >> Timothy McKee >> VP, Network Services >> SDN Global >> +1-704-587-4829 work >> +1-704-587-4830 NOCC >> >> >> >> >> _______________________________________________ >> Astlinux-users mailing list >> [email protected] >> > http://lists.kriscompanies.com/mailman/listinfo/astlinux-users >> >> Donations to support AstLinux are graciously >> accepted via PayPal to [EMAIL PROTECTED] >> > > > > > ______________________________________________________________________ > ______________ > Want to start your own business? > Learn how on Yahoo! Small Business. > http://smallbusiness.yahoo.com/r-index > _______________________________________________ > Astlinux-users mailing list > [email protected] > http://lists.kriscompanies.com/mailman/listinfo/astlinux-users > > Donations to support AstLinux are graciously accepted via PayPal to > [EMAIL PROTECTED] ============= Timothy McKee VP, Network Services SDN Global +1-704-587-4829 work +1-704-587-4830 NOCC _______________________________________________ Astlinux-users mailing list [email protected] http://lists.kriscompanies.com/mailman/listinfo/astlinux-users Donations to support AstLinux are graciously accepted via PayPal to [EMAIL PROTECTED]
