A Real-time Transport Protocol Header Extension for Client-to- Mixer Audio Level Indication
RFC 6464, “A Real-time Transport Protocol Header Extension for Client-to- Mixer Audio Level Indication”, is a Proposed Standard document published in December 2011 by J. Lennox, E. Ivov, E. Marocco. The canonical text is published by the RFC Editor.
Abstract
This document defines a mechanism by which packets of Real-time Transport Protocol (RTP) audio streams can indicate, in an RTP header extension, the audio level of the audio sample carried in the RTP packet. In large conferences, this can reduce the load on an audio mixer or other middlebox that wants to forward only a few of the loudest audio streams, without requiring it to decode and measure every stream that is received. [STANDARDS-TRACK]
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 6464 is hosted at rfc-editor.org. Available in TXT,HTML.
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