Re: [AVT] RE: <draft-ietf-avt-rtp-vmr-wb-03.txt>: sampling rate

[Colin Perkins <csp at csperkins.org>]

On 10 Sep 2004, at 00:20, sassan.ahmadi at nokia.com wrote:

> Hi Hari,
>  
> Yes, both narrowband and wideband operation of VMR-WB under cdma2000 
> Service Option 62 have been specified by 3GPP2 C.S0052-0 v1.0 (see 
> Section 2 of this specification).
>  
> Narrowband processing has been one of the mandatory requirements of 
> the cdma2000 wideband speech codec (see 3GPP2 S.R0080 v1.0 for more 
> details).
>  
> Furthermore, VMR-WB has been proposed as wideband and narrowband 
> multimode codec for 3GPP2 multimedia streaming and messaging 
> applications.
>  
> Moreover, the use of narrowband processing in conjunction with 
> narrowband processing is optional. You may opt not to use narrowband 
> processing of VMR-WB, but it does not mean that this feature should 
> not be specified in the RFC.
>  
> I believe using one RTP timestamp of 16000 Hz and the new optional 
> MIME parameter would resolve all of the confusions.

No. Not only would it not resolve these confusions, it would conflict 
with normal RTP usage and all other payload formats.

Colin


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