[SIPForum-discussion] Consultation - How to decode G729 (SIP)

Munjal Patel munjal84 at gmail.com
Tue Aug 5 18:52:53 UTC 2014


Try using cloudshark.org

Munjal

Sent from my iPhone

> On Jul 16, 2014, at 5:34 PM, Zuñiga, Guillermo <Guillermo.Zuniga at cwpanama.com> wrote:
> 
> Hi fellows,
>  
> Do you have any link to download the Open G.729 Decoder?
>  
> thanks
>  
>  
> 
> Guillermo Zuniga
> Especialista de Soporte Técnico
> Gerencia de Soporte Técnico
> 
> Tel:	+507 263-6671
> Cel:	+507 6670-0481
> Fax:	+507 265-3295
> Email:	Guillermo.Zuniga at cwpanama.com
> 
> <image3e8b53.JPG>
> 
> 
> 
> 
>  
> 
> <image4d95b6.JPG>
> 
> 
> De: discussion-bounces at sipforum.org [mailto:discussion-bounces at sipforum.org] En nombre de Prakash Singh Chaudhary
> Enviado el: jueves, 03 de julio de 2014 04:35 a.m.
> Para: Vinicio Callejas
> CC: discussion at sipforum.org
> Asunto: Re: [SIPForum-discussion] Consultation - How to decode G729 (SIP)
>  
> Dear Vinicio,
>  
> Follow the below steps
>  
> First Download Audacity and Open G.729 Decoder
> http://audacity.sourceforge.net/
> http://codecpro.com/openInitG729.html
> 1.       On Wireshark under RTP, do show all streams and select the desired media stream for Analyzing.Then do Save Payload and keep the format as .raw. Like save it as g.729Forward.raw
> 2.       You will have to save both the directions media in different files like g.729Forward.raw and g.729Reverse.raw.
> 3.       Saving both the directions file will give you error.
> 4.       Then download the Open G.729 Decoder from Internet and convert the .raw files to .pcm format
> c:\g729\ 
> Syntax: va_g729_decoder.exe sample.raw sample.pcm.raw
>  Example:
>  cd c:\g729
>  c:\g729\va_g729_decoder.exe forward.raw forward.pcm
>  5.       Do this for both the files and the Open Audacity, Select Project  èImport Raw File è Select one of the two files and then choose
> Signed 16-bit pc, no endianness, 1 channel (mono), Start offset:0, Amount to import: 100%, Sample Rate : 8000
> 6.       Select Project -> Import raw File... (for the other file)
> Select the g729reverse.pcm file and choose the same settings. This will open both the forward and reverse PCM files in Audacity. When you click play, you will now be able to hear both sides of the conversation played together.
>  
> Regards.
> Prakash Singh Chaudhary 
>  
> 
> On Sat, Jun 28, 2014 at 10:03 PM, Vinicio Callejas <vinicio.callejas at gmail.com> wrote:
> Estimated sip-forum, I have some doubts about decoding codec G729 calls to listen to audio. With the purpose of determining audio problems!.
>  
> Best regards,
> Vinicio Callejas
> 
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