RTP Payload Format for AC-3 Audio
RFC 4184

Approval announcement
Draft of message to be sent after approval:

From: The IESG <iesg-secretary@ietf.org>
To: IETF-Announce <ietf-announce@ietf.org>
Cc: Internet Architecture Board <iab@iab.org>,
    RFC Editor <rfc-editor@rfc-editor.org>, 
    avt mailing list <avt@ietf.org>, 
    avt chair <avt-chairs@tools.ietf.org>
Subject: Protocol Action: 'RTP Payload Format for AC-3 Audio' to 
         Proposed Standard 

The IESG has approved the following document:

- 'RTP Payload Format for AC-3 Audio '
   <draft-ietf-avt-rtp-ac3-08.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-ac3-08.txt

Technical Summary:

This specification defines an RTP payload format for the AC-3 (Dolby 
Digital) multi-channel audio codec. The format supports aggregation
and fragmentation. The design is simple and uses proved concepts 
that are known to work well.

Working Group Summary:

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

AC3 is coming out in a new specification (Revision B) in 2005, but this
revision does not affect format carried by the RTP payload;
the allowed media format which the working group reviewed in the
easily available document is identical to the format in the specification
about to appear.  Revision B is referenced in the document to ensure its
best future relevance.

Protocol Quality:

The format's simplicity and usage of proven and well known design
concepts ensures well-working functionality and implementation. The
document has been well reviewed within the WG.

The Responsible AD is Allison Mankin and the WG Chair shepherd 
is Magnus Westerlund.