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MPEG finalizes MPEG-4 High-Efficiency AAC -- aacPlus Specification Implementations are Available Immediately from Coding Technologies Mountain
View, CA, March 18, 2003 - Coding Technologies, leading provider
of audio compression technologies for mobile, digital broadcasting and
the Internet, announced today that MPEG has finalized the specification
for MPEG-4 High-Efficiency AAC, also known as aacPlus. Only the formal
approval by the ISO's national bodies remains in the MPEG-4 standards
process. As a superset of AAC, High-Efficiency AAC is both backward
and forward compatible with existing AAC content and decoders. Based
on Coding Technologies' Spectral Band Replication (SBR), the newly finalized
spec is already available in evaluation and developer kits for immediate
productization. In
independent quality testing by organizations like MPEG and the European
Broadcasting Union, aacPlus outperformed all other codecs in terms of
audio quality per bit. Due to this unrivaled performance, SBR was selected
in 2001 as reference model for bandwidth extension technologies inside
MPEG. Finalized last week in the results of the 64th MPEG meeting, High-Efficiency
AAC (MPEG-4 aacPlus) is part of the core effort of MPEG to keep the
MPEG-4 standard the most efficient and complete coding system on the
market today. Libraries and reference source code for MPEG-4 aacPlus encoders and decoders are available on Mac OS X, Win32, Linux, as well as multiple DSPs. Developers can contact Coding Technologies directly for immediate access to evaluation kits. About
Coding Technologies About
MPEG-4 aacPlus For
more information, visit http://www.codingtechnologies.com.
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