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What is
DVD Audio?
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by:
Kenny Hemphill
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DVD Audio is a music format that is designed to offer improved audio
performance over CD. The new audio format can be used to provide
listeners with Advanced Resolution stereo and/or multi-channel (up to a
maximum of six channels) music. In order to play back DVD Audio discs,
players have to be specially designed to support the format. So far,
consumer electronics manufacturers have announced a range of DVD Audio
players, including home decks, portable players and devies for cars.
DVD Audio has a sampling rate of up to 192kHz compared to a maximum of
44.1kHz for CD. It also supports resolutions of up to 24 bits, compared
to 16bits on CD.
The idea behind DVD Audio is that it alllows peoducesr to give
listeners a playback experience that is much more faithful to the
original master recording that has been possible previously.
DVD Audio discs have a much higher capacity than CDs. This extra space
can be used to provide audio at the highest possible quality or for
longer recordings, or to provide additional material, such as
infromation on the artist, photos and even video, all of which can be
displaye don a television screen. Alternatively, DVD Audio discs
currently on the market from the likes of the Warner group of labels
have the audio content in both DVD Audio format and as Dolby Digital
surround so that they can be played back on regular DVD players.
DVD Audio discs are navigable in the same way as DVD Video when polayed
back on a player connected to a TV set. Users can select the required
track from an on-screen menu and with an internet connection, can click
on links to go to websites.
These dual format discs are a good way to kick-start the market while
DVD Audio players are still relativley rare. The market will also be
helped by combined DVD Video and Audio players.
About the Author
Kenny Hemphill is the editor and publisher of The HDTV Tuner
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