Protocol Action: 'RTP Payload Format for Extended AMR Wideband (AMR-WB+) Audio Codec' to Proposed Standard

[The IESG <iesg-secretary at ietf.org>]

The IESG has approved the following document:

- 'RTP Payload Format for Extended AMR Wideband (AMR-WB+) Audio Codec '
   <draft-ietf-avt-rtp-amrwbplus-07.txt> as a Proposed Standard

This document is the product of the Audio/Video Transport Working Group. 

The IESG contact persons are Allison Mankin and Jon Peterson.

A URL of this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-ietf-avt-rtp-amrwbplus-07.txt

Technical summary:

This draft defines an RTP payload format for the new AMR-WB+ audio
codec. The format is heavily derived from the existing RTP payload
format for the AMR-WB audio codec (RFC 3267), with some simplifications
and with support for the new features of the WB+ modes. The design
choices are largely those that have been proven in previous payload
formats. The only somewhat unusual feature is that the RTP clock rate
is run at a different rate than the audio sampling rate, to allow for
variable rate coding.

Working group summary:

There was strong consensus in the working group that this is an
appropriate solution.

The specification is reported as a critical dependency by 3GPP's
liaison to the IETF.

Protocol quality:

The protocol is being widely implemented by 3GPP companies. 
It has been extensively reviewed by Colin Perkins and Dave Singer;
Colin is the shepherd of the document for the IETF.


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