RTP Payload Format and File Storage Format for Opus Speech and Audio Codec

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Document Type Expired Internet-Draft (individual)
Last updated 2011-07-04
Replaced by rfc7587, draft-ietf-payload-rtp-opus
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document defines the Real-time Transport Protocol (RTP) payload format and file storage format for packetization of Opus encoded speech and audio data that is essential to integrate the codec in the most compatible way. Further, media type registrations are described for the RTP payload format and the file storage format.


Julian Spittka (julian.spittka@skype.net)
Koen Vos (koen.vos@skype.net)
Jean-Marc Valin (jean-marc.valin@octasic.com)

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