[rfc-dist] RFC 3951 on Internet Low Bit Rate Codec (iLBC)

rfc-editor at rfc-editor.org rfc-editor at rfc-editor.org
Fri Dec 3 13:25:32 PST 2004


A new Request for Comments is now available in online RFC libraries.


        RFC 3951

        Title:      Internet Low Bit Rate Codec (iLBC)
        Author(s):  S. Andersen, A. Duric, H. Astrom, R. Hagen,
                    W. Kleijn, J. Linden
        Status:     Experimental
        Date:       December 2004
        Mailbox:    sva at kom.auc.dk, alan.duric at telio.no,
                    henrik.astrom at globalipsound.com,
                    roar.hagen at globalipsound.com,
                    bastiaan.kleijn at globalipsound.com,
                    jan.linden at globalipsound.com
        Pages:      194
        Characters: 373442
        Updates/Obsoletes/SeeAlso:    None

        I-D Tag:    draft-ietf-avt-ilbc-codec-05.txt

        URL:        ftp://ftp.rfc-editor.org/in-notes/rfc3951.txt


This document specifies a speech codec suitable for robust voice
communication over IP.  The codec is developed by Global IP Sound
(GIPS).  It is designed for narrow band speech and results in a
payload bit rate of 13.33 kbit/s for 30 ms frames and 15.20 kbit/s
for 20 ms frames.  The codec enables graceful speech quality
degradation in the case of lost frames, which occurs in connection
with lost or delayed IP packets.

This document is a product of the Audio/Video Transport Working Group
of the IETF.

This memo defines an Experimental Protocol for the Internet community.
It does not specify an Internet standard of any kind.  Discussion and
suggestions for improvement are requested.  Distribution of this memo
is unlimited.

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Joyce K. Reynolds and Sandy Ginoza
USC/Information Sciences Institute

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