For Immediate Release:
January 28, 2008

Now au brand mobile phones offer the same high quality sound sensation as an audio player

JVC High Sound Quality “net K2” Technology
to be Used in KDDI au Brand Mobile Phones- The world’s first*1 mobile phone to feature “net K2” technology -Victor Company of Japan, Ltd (JVC) and Victor Entertainment, Inc. (VE) have announced that “net K2”,
part of their “K2” technology for realizing high sound quality for digital sound sources, is to be used in
the au brand series of mobile phones sold by KDDI corporation. The “net K2” technology represents
the processing technique for compressed sound-sources of “K2” technology that has been jointly
developed by JVC and VE to faithfully reproduce original master sound. KDDI will gradually implement“net K2” across common platform models beginning with the new au brand models scheduled forrelease in March.
The “net K2” technology is to be installed by KDDI corporation in a mobile phone for the first time*1
ever. It dramatically improves sound quality when music is played back on a mobile phone byrecovering lost music data through its audio quality enhancement process. This loss of music dataoccurs when the data is digitally compressed to reduce the information to as little as one tenth to one
thirtieth of its original size*2 and then decompressed, resulting in increased distortion, narrowing of thesound field, reduced high range and other such degradation of the music sound quality.
*1: As of January 28, 2008, according to a JVC survey*2: Compared with CD (WAV file)［Level］

When compressed, the music data loses part of the middle
and high range component, and the sound quality isdegraded by the removal of the high range component.

［Level］

The music data lost in compression is newly created
and added to restore the sound quality before compression.
Created and added by “net K2”

Middle and high range of music data is removed.

Sound waves before compression

The sound waves of pre-compression
and post-compression are almost sameby the “net K2” technology.

The high range of the music
data is removed.
Sound waves after compression［Freq.］［Freq.］“net K2” OFF“net K2” ON<“net K2” technology revives pre-compression sound quality >1With the spread of music distribution, people are increasingly listening to music replayed incompressed formats on mobile phones. However, restrictions on sound quality mean that the true
sensation of the music that the artists and engineers who create it wanted to express sometimes fails
to reach the listener. The inclusion of “net K2” technology in au brand mobile phones has advanced
the quality of their playback function even further, reaching high sound quality on par with that oftypical audio players that can now be enjoyed even when listening to music on a mobile phone.
The “net K2” technology consists of two technologies. The “net K2 pre-process” technology improves
the sound quality when music distributors compress the sound source (this has been in use by anumber of companies including Victor Entertainment since October 2005). The “net K2 post-process”
technology improves sound quality when a compressed sound source is played back on the user’s
device. The “net K2 post-process” technology will be included in au brand mobile phones, and thecombination of both the “net K2 pre-process” during compression of the sound source for distribution
and the “net K2 post-process” when playing back on an au brand mobile phone will achieve a soundquality that is equal to or better than CD quality, even from a compressed sound source.
JVC and VE will continue their efforts to develop of music culture by using “net K2” in their products
and also by licensing the technology to other companies in the music distribution industry, so as todeliver the excitement of music to a wider audience.
<Reference>
Jim Anderson* (Recording engineer and Producer) Comments on net K2 Technology“Without the net K2 compression the difference is striking.
The original audio sounds as if it's in monaural, not stereo.
When the net K2 is applied, the sound becomes wider andsmoother. I can hear that for jazz recordings, the net K2 isa great improvement. It's very musical. The delicate top
end of the cymbals sound completely different and thesound of the high-hat is improved as well.”* Jim Anderson is a New York-based recording engineer andproducer. He specializes in recording jazz and acoustic music,
and is renowned as one of the world’s most distinguishedrecording engineers.

# # #For further information, please contact:
Toshiya Ogata, Senior Staff Manager
Public Relations Office
Corporate Communications Department
Victor Company of Japan, Limited (JVC)
Tel: +81-(0)45-450-2951, 2952
Fax: +81-(0)45-450-2959
E-mail: ogata-toshiya@jvc-victor.jp
URL: http://www.jvc.co.jp/english

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