{
  "number": 4348,
  "title": "Real-Time Transport Protocol (RTP) Payload Format for the Variable-Rate Multimode Wideband (VMR-WB) Audio Codec",
  "authors": [
    "S. Ahmadi"
  ],
  "published": "2006-01",
  "status": "Proposed Standard",
  "stream": "IETF",
  "area": "rai",
  "working_group": "avt",
  "pages": 32,
  "formats": [
    "TXT",
    "HTML"
  ],
  "abstract": "This document specifies a real-time transport protocol (RTP) payload format to be used for the Variable-Rate Multimode Wideband (VMR-WB) speech codec. The payload format is designed to be able to interoperate with existing VMR-WB transport formats on non-IP networks. A media type registration is included for VMR-WB RTP payload format.\n\nVMR-WB is a variable-rate multimode wideband speech codec that has a number of operating modes, one of which is interoperable with AMR-WB (i.e., RFC 3267) audio codec at certain rates. Therefore, provisions have been made in this document to facilitate and simplify data packet exchange between VMR-WB and AMR-WB in the interoperable mode with no transcoding function involved. [STANDARDS-TRACK]",
  "keywords": [
    "speech codec",
    "variable-rate multicode wideband speech codec"
  ],
  "draft": "draft-ietf-avt-rtp-vmr-wb-11",
  "doi": "10.17487/RFC4348",
  "updated_by": [
    "RFC4424"
  ],
  "urls": {
    "html": "https://rfc.dk/rfc4348/",
    "text": "https://rfc.dk/rfc4348.txt",
    "rfc_editor": "https://www.rfc-editor.org/rfc/rfc4348",
    "datatracker": "https://datatracker.ietf.org/doc/rfc4348/"
  },
  "text_modified": "2006-01-11T01:02:57Z"
}