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

[sassan.ahmadi at nokia.com]

Hi Qiaobing,

> >> 1- Only one RTP timestamp clock rate of 16000 Hz is used 
> throughout 
> >> the I-D.
> > 
> > I think this is a good change that simplify things.
> 
> Agreed. I'd also like to suggest that some new text be added 
> to capture the essence of this 
> sampling rate discussion... we don't want further readers of 
> the RFC to get the wrong 
> impression that only 16k speech/music can be passed through 
> vmr-wb codec. Some explanation 
> over why only 16k timestamp rate is defined for the payload 
> and how one can still work with 
> 8k media would definitely help, especially to those who are 
> unfamiliar with the codec 
> internal operation.
> 

Looks like that we have reached to an agreement. I will include some text in the draft to address your point, something like " although a 16000 Hz RTP clock rate is used for VMR-WB, the injection and processing of 8000 Hz narrowband media is also allowed and can be handled by VMR-WB decoder".

Regards

-Sassan Ahmadi

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