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DVD-audio |
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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 [¦dē¦vē¦dē ′ȯd·ē·ō] (communications) A DVD format for digital storage of audio information. Also known as Book C. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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