Storage File Format for the Variable-Rate Multimode Wideband (VMR-WB) Audio Codec

Document Type Expired Internet-Draft (avt WG)
Author Sassan Ahmadi 
Last updated 2004-10-18
Stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Expired & archived
pdf htmlized (tools) htmlized bibtex
Stream WG state WG Document
Document shepherd No shepherd assigned
IESG IESG state Expired
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document specifies a file format for the storage of variable-rate multimode wideband (VMR-WB) speech codec. A MIME type registration is included for VMR-WB files. VMR-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 draft to facilitate retrieval of VMR-WB stored data (generated in the interoperable mode) by AMR-WB decoder.


Sassan Ahmadi (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)