RTP Payload Format for the Extended Adaptive Multi-Rate Wideband (AMR-WB+) Audio Codec
Draft of message to be sent after approval:
From: The IESG <firstname.lastname@example.org> To: IETF-Announce <email@example.com> Cc: Internet Architecture Board <firstname.lastname@example.org>, RFC Editor <email@example.com>, avt mailing list <firstname.lastname@example.org>, avt chair <email@example.com> Subject: Protocol Action: 'RTP Payload Format for Extended AMR Wideband (AMR-WB+) Audio Codec' to Proposed Standard The IESG has approved the following document: - 'RTP Payload Format for Extended AMR Wideband (AMR-WB+) Audio Codec ' <draft-ietf-avt-rtp-amrwbplus-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-amrwbplus-08.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.