[Asterisk-Users] G729 codec

[todd]

----- Original Message ----- 
From: "todd" <tkgun-zaurus at comcast.net>
To: "Asterisk Users Mailing List - Non-Commercial Discussion" 
<asterisk-users at lists.digium.com>
Sent: Tuesday, May 24, 2005 12:34 PM
Subject: Re: [Asterisk-Users] G729 codec


> Andrew
> Thanks for the reply-
> Forgive my ignorance in this area but from what I have been told by the 
> client was that G.729 b used less over all bandwidth on average ) then 
> G.729 A.
> Correct me if I am wrong but the way it was laid out to me was G.729 B = 
> (5.? kbps-8 kbps) G.729 A= (8 kbps -13kbps) , these of course stats form 
> Avaya devices, maybe for whatever reason Asterisk capable of keeping it at 
> 8?
> This is way out of my area, I would love to be wrong and be able to use A 
> if it can perform they way they want.
> The reason it is an issue they serve international circuits and every bit 
> counts and adds up with the volume they do.
> TKG
>
>
> ----- Original Message ----- 
> From: "Andrew Kohlsmith" <akohlsmith-asterisk at benshaw.com>
> To: <asterisk-users at lists.digium.com>
> Sent: Tuesday, May 24, 2005 6:55 AM
> Subject: Re: [Asterisk-Users] G729 codec
>
>
>> On May 22, 2005 04:46 pm, todd wrote:
>>> Thanks for the info: do you know if  the g729 codec for Asterisk is 
>>> limited
>>> to only the G.729A version. Is there G.729 B available for Asterisk?
>>
>> Does it matter?
>>
>> g729 has fixed-point and floating-point implementations.  The data coming 
>> out
>> the back end is the same.  Either a is floating-point and b is 
>> fixed-point or
>> the other way 'round (I can never remember).
>>
>> It should not make one whit of difference which one you use to generate 
>> the
>> g729 stream.  Do you have a specific reason to need one over the other?
>>
>> -A.
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>