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RTP Payload Format for the Mixed Excitation Linear Prediction Enhanced (MELPe) Codec (RFC8130)

IP.com Disclosure Number: IPCOM000249753D
Original Publication Date: 2017-Mar-01
Included in the Prior Art Database: 2017-Mar-31
Document File: 60 page(s) / 65K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

V. Demjanenko: AUTHOR [+2]

Abstract

This document describes how compressed Mixed Excitation Linear Prediction Enhanced (MELPe) speech as produced by the MELPe codec may be formatted for use as an RTP payload. Details are provided to packetize the three different codec bitrate data frames (2400, 1200, and 600) into RTP packets. The sender may send one or more codec data frames per packet, depending on the application scenario or based on transport network conditions, bandwidth restrictions, delay requirements, and packet loss tolerance.

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Internet Engineering Task Force (IETF)                     V. Demjanenko Request for Comments: 8130                                  D. Satterlee Category: Standards Track                       VOCAL Technologies, Ltd. ISSN: 2070-1721                                               March 2017

                            RTP Payload Format    for the Mixed Excitation Linear Prediction Enhanced (MELPe) Codec

Abstract

   This document describes the RTP payload format for the Mixed    Excitation Linear Prediction Enhanced (MELPe) speech coder.  MELPe's    three different speech encoding rates and sample frame sizes are    supported.  Comfort noise procedures and packet loss concealment are    described in detail.

Status of This Memo

   This is an Internet Standards Track document.

   This document is a product of the Internet Engineering Task Force    (IETF).  It represents the consensus of the IETF community.  It has    received public review and has been approved for publication by the    Internet Engineering Steering Group (IESG).  Further information on    Internet Standards is available in Section 2 of RFC 7841.

   Information about the current status of this document, any errata,    and how to provide feedback on it may be obtained at    http://www.rfc-editor.org/info/rfc8130.

Copyright Notice

   Copyright (c) 2017 IETF Trust and the persons identified as the    document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal    Provisions Relating to IETF Documents    (http://trustee.ietf.org/license-info) in effect on the date of    publication of this document.  Please review these documents    carefully, as they describe your rights and restrictions with respect    to this document.  Code Components extracted from this document must    include Simplified BSD License text as described in Section 4.e of    the Trust Legal Provisions and are provided without warranty as    described in the Simplified BSD License.

 Demjanenko & Satterlee       Standards Track                    [Page 1]
 RFC 8130           RTP Payload Format for MELPe Codec         March 2017

 Table of Contents

   1. Introduction ....................................................2

      1.1. Conventions ................................................2

   2. Background ......................................................3

   3. Payload Format ..................................................4

      3.1. MELPe Bitstream Definitions ................................5

           3.1.1. 2400 bps Bitstream Structure ........................6

           3.1.2. 1200 bps Bitstream Structure ........................9

          ...