A New Internet-Draft is available from the on-line Internet-Drafts
directories.
Title : IPMR Speech Codec
Author(s) : V. Sviridenko, D. Yudin
Filename : draft-spiritdsp-ipmr-00.txt
Pages : 22
Date : 2009-10-1
This document describes IPMR, a scalable variable adaptive multi-
rate speech and audio codec designed for use in IP based networks.
This codec is suitable for real time communications such as
telephony, voice&video conferencing.Four different sampling
frequencies are supported for encoding the audio input signal.
Adaptation to network characteristics is provided through control of
bitrate, packet rate, packet loss resilience and use of discontinuous
transmission (DTX).
IP-MR support different profiles for input signal content which
should be specified during codec initialization. It can be in Speech,
Audio or Auto-detection mode. In Auto-detection mode codec recognizes
type of input content automatically and switch to appropriate Speech
or Audio mode automatically.
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http://www.ietf.org/internet-drafts/draft-spiritdsp-ipmr-00.txt
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