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Free Lossless Audio Codec

The information below is for an old version of the document.
Document Type
This is an older version of an Internet-Draft whose latest revision state is "Active".
Expired & archived
Authors Josh Coalson, Alberto Soto , Andrew Weaver
Last updated 2020-01-31 (Latest revision 2019-07-30)
Replaces draft-weaver-cellar-flac
RFC stream Internet Engineering Task Force (IETF)
Additional resources Mailing list discussion
Stream WG state WG Document
Associated WG milestone
Jul 2022
Submit specification for FLAC audio codec to IESG (Standards Track)
Document shepherd (None)
IESG IESG state Expired
Consensus boilerplate Yes
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


This document defines FLAC, which stands for Free Lossless Audio Codec, a free, open source codec for lossless audio compression and decompression.


Josh Coalson
Alberto Soto
Andrew Weaver

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