HD-AAC is based on the MPEG-4 SLS (Scalable to Lossless) standard, an extension to the MPEG-4 audio standard jointly developed by Fraunhofer and Infocomm Research. The encoding process HD-AAC preserves every bit of information in the uncompressed original music track, providing lossless compression of 24-bit music content. That's compared to the 16-bit, 44.1 kHz quality found on CDs - hence, Fraunhofer's "better than CD" claim.
.Saturday 23 February 2008
CES: HD-AAC codec 'makes CDs obsolete'
Fraunhofer IIS, inventor of the ubiquitous MP3 music format, on Monday made a pitch to audio and computer makers to use its HD-AAC format. HD-AAC is a new digital music encoding format that Fraunhofer says is actually better than audio CDs. What's more, it's already iPod-compatible - well, sort of.
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