Dismiss
InnovationQ will be updated on Sunday, Oct. 22, from 10am ET - noon. You may experience brief service interruptions during that time.
Browse Prior Art Database

RTP Payload Format for BroadVoice Speech Codecs (RFC4298)

IP.com Disclosure Number: IPCOM000132516D
Original Publication Date: 2005-Dec-01
Included in the Prior Art Database: 2005-Dec-20
Document File: 15 page(s) / 30K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

J.-H. Chen: AUTHOR [+3]

Abstract

This document describes the RTP payload format for the BroadVoice(R) narrowband and wideband speech codecs. The narrowband codec, called BroadVoice16, or BV16, has been selected by CableLabs as a mandatory codec in PacketCable 1.5 and has a CableLabs specification. The document also provides specifications for the use of BroadVoice with MIME and the Session Description Protocol (SDP).

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 9% of the total text.

Network Working Group                                         J.-H. Chen
Request for Comments: 4298                                        W. Lee
Category: Standards Track                                     J. Thyssen
                                                    Broadcom Corporation
                                                           December 2005


            RTP Payload Format for BroadVoice Speech Codecs

Status of This Memo

   This document specifies an Internet standards track protocol for the
   Internet community, and requests discussion and suggestions for
   improvements.  Please refer to the current edition of the "Internet
   Official Protocol Standards" (STD 1) for the standardization state
   and status of this protocol.  Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2005).

Abstract

   This document describes the RTP payload format for the BroadVoice(R)
   narrowband and wideband speech codecs.  The narrowband codec, called
   BroadVoice16, or BV16, has been selected by CableLabs as a mandatory
   codec in PacketCable 1.5 and has a CableLabs specification.  The
   document also provides specifications for the use of BroadVoice with
   MIME and the Session Description Protocol (SDP).


Chen, et al.                Standards Track                     [Page 1]
RFC 4298           RTP Payload Format for BroadVoice       December 2005


Table of Contents

   1. Introduction ....................................................2
   2. Background ......................................................2
   3. RTP Payload Format for BroadVoice16 Narrowband Codec ............3
      3.1. BroadVoice16 Bit Stream Definition .........................4
      3.2. Multiple BroadVoice16 Frames in an RTP Packet ..............5
   4. RTP Payload Format for BroadVoice32 Wideband Codec ..............6
      4.1. BroadVoice32 Bit Stream Definition .........................6
      4.2. Multiple BroadVoice32 Frames in an RTP Packet ..............8
   5. IANA Considerations .............................................8
      5.1. MIME Registration of BroadVoice16 for RTP ..................9
      5.2. MIME Registration of BroadVoice32 for RTP ..................9
   6. Mapping to SDP Parameters ......................................10
      6.1. Offer-Answer Model Considerations .........................11
   7. Security Considerations ........................................11
   8. Congestion Control .............................................11
   9. Acknowledgements ...............................................11
   10. References...