Prototype for IETF Interactive Audio Codec

Document Type Replaced Internet-Draft (individual)
Authors Jean-Marc Valin  , Koen Vos 
Last updated 2010-10-15 (latest revision 2010-07-09)
Replaced by draft-ietf-codec-harmony
Stream (None)
Intended RFC status (None)
Expired & archived
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IESG IESG state Replaced by draft-ietf-codec-harmony
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document provides a quick overview of a prototype codec combining a linear prediction layer (SILK) with an MDCT-based layer (CELT). These codecs are used because of the authors' familiarity with the source code, but it does not prevent inclusion of code from other codecs as well. This is a work in progress.


Jean-Marc Valin (
Koen Vos (

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