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DVD-audio
(redirected from DVD Audio)

   Also found in: Wikipedia 0.02 sec.

DVD-Audio

A high-resolution audio format approved by the DVD Forum in 1999. DVD-Audio and SACD were the two next-generation digital audio formats for enhanced sound quality, but neither one caught on (see high-resolution audio).

Like CDs, DVD-Audio uses PCM encoding. It provides for 16, 20 and 24-bit samples at a variety of sampling rates: 44.1, 48, 88.2, 96, 176.4 and 192 kHz, compared to 16 bit samples at 44.1 kHz for CDs. DVD-Audio (DVD-A) offers two channels at the highest sampling rates and six channels at lower rates. Channel rates can also vary; for example, the channels for the front speakers can be sampled higher than for the rear.

DVD-Audio supports other coding systems such as Dolby Digital, DTS and DSD and records them on alternate tracks.

The Video Zone
DVD-Audio discs may also contain video, graphics and text in the DVD-Video zone. The Video zone is located at the outer edge of the disc following the DVD-Audio zone that starts at the center of the platter. DVD-Audio players also play regular DVD movies.

The Flip Disc (DVD-A and CD)
A Flip Disc, which became available in 2004, is a DVD-Audio disc that contains the same titles in the CD-DA format on the other side for compatibility with regular CD players. See SACD, MLP and DVD.

DVD-Audio and More
The Compli is a very high-end audio deck from Theta Digital that plays every type of audio and video format, including audio CD, MP3, DVD-Audio, SACD, Video CD and DVD. (Image courtesy of Theta Digital, www.thetadigital.com)


DVD-audio [¦dē¦vē¦dē ′ȯd·ē·ō]
(communications)
A DVD format for digital storage of audio information. Also known as Book C.


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DVD Audio records more information, more frequently, than is done for CDs, allowing for a richer, truer sound distinguishable even to a stone-eared audio hack such as myself.
This new multi-media system delivers the same high resolution DVD Audio sound quality and impact found in many high-end home theater systems.
A technology preview for next generation DVD Audio format
 
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