[SIPForum-discussion] G729AB codec

[Raghul Prasanna]

Try this, it works for me
 
A open source decoder which can be used legally for testing can be found here:
http://www.voiceage.com/openinit_g729.php
 
1)       In wireshark go to ‘statistics’ then ‘Rtp’ then ‘show all streams’ then click on you desired stream and click ‘analyse’.
2)       Instead of saving as an au file, save the file as a .raw audio stream.
3)       In the command line, run ‘va_g729_decoder ethereal.raw sample.pcm’
 
4)       The resulting file can be played in Goldwave as a 16-bit linear PCM sample at 8000htz (Download Goldwave)


--- On Mon, 11/8/08, Beith, Gordon <GBeith at empirix.com> wrote:

From: Beith, Gordon <GBeith at empirix.com>
Subject: Re: [SIPForum-discussion] G729AB codec
To: "Ambesh Poddar" <ambesh.poddar at nethawkgroup.com>, discussion at sipforum.org
Date: Monday, 11 August, 2008, 6:07 PM








Try one of these to get your answers….
http://www.voip-calculator.com/
http://www.bandcalc.com/
 
/Gordon
 




From: discussion-bounces at sipforum.org [mailto:discussion-bounces at sipforum.org] On Behalf Of Ambesh Poddar
Sent: Monday, August 11, 2008 1:01 AM
To: discussion at sipforum.org
Subject: [SIPForum-discussion] G729AB codec
 
Hi all,
 
I have few questions about G729AB audio codec. 
 

What is the payload length of a 20ms G729AB audio packet.
During Silence period, which SID frames should be sent for G729A audio codec. i.e. CN of 2 bytes with PT 18 or SID frame of 1 byte with PT 13 (RFC 3389)
3.   Is there any software available for playing G729 audio codecs.
 
 
I am new to this forum and this mailing list. I hope I am not wrong in posting my questions here. 
 
Thanks & Regards,
Ambesh_______________________________________________
This is the SIP Forum discussion mailing list
TO UNSUBSCRIBE, or edit your delivery options, please visit
http://sipforum.org/mailman/listinfo/discussion
Post to the list at discussion at sipforum.org


Send instant messages to your online friends http://uk.messenger.yahoo.com 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://sipforum.org/pipermail/discussion/attachments/20080812/91007d9e/attachment-0002.html>