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Coding Technologie's aacPlus called "a clear winner" by world's largest professional broadcast association, the European Broadcasting Union Spectral Band Replication (SBR) Given Credit for Overall Improvement of Codec Performance Mountain View, CA, October 9, 2002 - Coding Technologies, the industry's leading provider of audio compression technologies for the mobile, digital broadcasting and Internet markets worldwide, announced today that the European Broadcasting Union (EBU) Subjective Listening Tests on Low Bitrate Audio Codecs shows aacPlus(tm) from Coding Technologies to be the highest quality codec for streaming audio applications. Calling aacPlus "a clear winner," the report states that it is now possible to provide excellent quality stereo audio programming at 48Kbps. The EBU report also credits Coding Technologies' Spectral Band Replication (SBR) (tm) technology with the significant improvement in codec performance compared to the previous report completed in 2000. aacPlus is the combination of MPEG AAC and Coding Technologies' SBR (Spectral Band Replication) technology. SBR is a unique bandwidth extension technique, which enables audio codecs to deliver the same quality at half the bit rate. As a result, aacPlus delivers CD-quality stereo at 48 kbps. This level of efficiency fundamentally enables new applications in the markets of mobile and digital broadcast. Introduced as the new MPEG 4 Audio reference model in 2001, aacPlus is on track to become a core component of MPEG 4 Audio. "aacPlus is a key component of the XM sound," said XM Executive Vice President Steve Gavenas. "The technologies that define XM Satellite Radio's sound quality have been auditioned and endorsed by leading audio experts from around the world, and it's exciting to learn of this latest affirmation from EBU." The EBU tests were conducted in parallel at three sites, BBC, NRK and IRT, ensuring reproducible results. Tests were conducted by groups of expert listeners. The selection of source material featured a range of different audio types covering both speech and music content. There were eight audio codecs under test: Microsoft Windows Media 8, MPEG AAC, aacPlus, mp3PRO, RealNetworks Real Audio 8 and AMR Wideband. The second best codec in the test was mp3PRO, the designated successor of MP3, also developed by Coding Technologies and licensed through Thomson Multimedia.
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