please post the output of the command
cat /proc/interrupts
and
uname -r
the hiss may be from interrupt sharing with the TDM card.
try turning off any service in the motherboard that you dont need
(serials, usb,audio,etc)
unload the x100p module, make sure you're not using ztdummy

that's from the top of my head......


On 9/29/06, Barry Fawthrop <[EMAIL PROTECTED]> wrote:
> Hi All
>
> I stopped for a while and read the Archives (well some of it) Amazing
> what you can learn if you stop to read long enough ;)
>
> I have been using Asterisk for 2 1/2 years now in a std PC Initially
> with a X100p and TDM400p (with FXS module) [The original Development Kit]
>
> I have always had an echo problem , or poor voice quality
> I have 3 snom 200 connected using SIP and an SIP VoIP Provider
> I accept calls on the X100p and based on routing bridge the call to an
> analog phone on the TDM or to IP Phones
>
> I recently got 2 FXO Modules, removed the X100p and now have the TDM400p
> with (FXS, spare , FXO , FXO)             Still I have quality issues.
>
> I have tried working with ztmonitor and changing the rxgain and txgain
> as well as echotraining and echocancel yes , 125 300 900
> Nothing results in good quality.
>
> (1) What do most people have as settings for rxgain, txgain etc.. to
> control poor audio quality ?
> (2) What could be wrong in my case where else can I look
>
>
> The call has have a hiss, echo or worst sounds like you are 100 feet
> underwater talking through your hands it's muffled, not just low volume
> but mumblely
> no clear sound.
>
> Going to be trying a Net2801 and Soekris board as soon as they arrive,
> also getting a Clipcomm CG 410, just waiting for delivery
>
> Any Ideas ?
>
> Thanks All
>
> Barry
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>
> Donations to support AstLinux are graciously accepted via PayPal to [EMAIL 
> PROTECTED]
>


-- 
------------------------------------------------------------
Erick Perez
Panama Sistemas
Integradores de Telefonia IP y Soluciones Para Centros de Datos
Panama, Republica de Panama
Cel Panama. +(507) 6694-4780
------------------------------------------------------------
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