asterisk users - Jul 2003 - IAX G729 Codec

Hi,

I have recently purchased some Asterisk G729 Codecs and installed them to
overcome by bandwidth problem I was having with GSM.

The G729 keeps the pings nice and low, but the audio stutters or jitters a fair
bit.  (Starts and stops)

Any Idea what would be causing this ?  I am just testing it using the
OSS/Console at the moment, as I am waiting for my Digium cards to arrive.

Thanks
Jay
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
http://lists.digium.com/pipermail/asterisk-users/attachments/20030709/3b998c94/attachment.htm

On Wed, 2003-07-09 at 18:06, Jay Tyndall wrote:
> Hi,
>  
> I have recently purchased some Asterisk G729 Codecs and installed them
> to overcome by bandwidth problem I was having with GSM.
>  
> The G729 keeps the pings nice and low, but the audio stutters or
> jitters a fair bit.  (Starts and stops)
>  
> Any Idea what would be causing this ?  I am just testing it using the
> OSS/Console at the moment, as I am waiting for my Digium cards to
> arrive.
No zapata device for timing would probably be one thing.

Also, what kind of network are you crossing? I have found some problems
when the network is not instantaneous, but not internet level lagging.
-- 
Steven Critchfield <critch@basesys.com>

This is going across a 256k/64 to a 512k/128.
They are about 2 hops away from each other and ping times are sub 70ms.
(Even when the * audio is playing)


----- Original Message ----- 
From: "Steven Critchfield" <critch@basesys.com>
To: <asterisk-users@lists.digium.com>
Sent: Thursday, July 10, 2003 12:02 PM
Subject: Re: [Asterisk-Users] IAX G729 Codec

> On Wed, 2003-07-09 at 18:06, Jay Tyndall wrote:
> > Hi,
> >
> > I have recently purchased some Asterisk G729 Codecs and installed them
> > to overcome by bandwidth problem I was having with GSM.
> >
> > The G729 keeps the pings nice and low, but the audio stutters or
> > jitters a fair bit.  (Starts and stops)
> >
> > Any Idea what would be causing this ?  I am just testing it using the
> > OSS/Console at the moment, as I am waiting for my Digium cards to
> > arrive.
>
> No zapata device for timing would probably be one thing.
>
> Also, what kind of network are you crossing? I have found some problems
> when the network is not instantaneous, but not internet level lagging.
> -- 
> Steven Critchfield <critch@basesys.com>
>
> _______________________________________________
> Asterisk-Users mailing list
> Asterisk-Users@lists.digium.com
> http://lists.digium.com/mailman/listinfo/asterisk-users