SMPTE Journal ( Volume: 109, Issue: 4, April 2000)
[ACTIVE]
Digital Audio Delivery to the Consumer
Metadata
- Publisher
- SMPTE — White Plains, NY, USA
- Doc Type
- Journal Article
- Content Type
- Original Research
- Abbreviated Title
- SMPTE J
- Volume
- 109, No. 4, pp. 301–308
- Abstract
- Dolby Digital is a system for coding up to 5.1 channels of audio into a low bit rate data stream intended to deliver audio to the consumer. High quality is obtained with compression ratios approaching 12:1 for multichannel audio programs. The high-compression ratio is achieved by methods that do not increase decoder memory and, thus, cost. The methods employed include transmission of a high-frequency resolution spectral envelope and a novel forward/backward adaptive bit allocation algorithm. In order to satisfy practical requirements of an emissions coder, the syntax includes a number of features useful to broadcasters and consumers: loudness uniformity between programs; dynamic range control; and broadcaster control of downmix coefficients. Optimum application of the system involves the creation and delivery of metadata describing dialogue loudness and intended dynamic range.
- Publication Date
- 2000-04-01
- DOI
10.5594/J05366- ISSN
- Print:
0036-1682 - Link
- https://doi.org/10.5594/J05366
- Author(s)
- Steve LymanSteve Lyman and Craig Todd are with Dolby Laboratorie, San FranciscoCraig ToddSteve Lyman and Craig Todd are with Dolby Laboratorie, San Francisco
- Copyright
- © 2000 Society of Motion Picture and Television Engineers, Inc.
Bibliographic Reference(s)
- Advanced Television Systems Committee , “Digital Audio Compression (AC-3),” Dec. 20, 1995 . EXTERNAL
- Advanced Television Systems Committee , “Guide to the Use of the ATSC Television Standard,” Oct. 4, 1995 . EXTERNAL
- Fielder L. , U.S. Pat. No. 5109417, 1992 . EXTERNAL
- ITU-R Rec. BS.775-1, “Multichannel Stereophonic Sound System With and Without Accompanying Picture,” 1994 . EXTERNAL
- ITU-R Rec. BS. 1996 , “Audio Coding for Digital Terrestrial Television Broadcasting,” 1995. EXTERNAL
- Princen Bradley , IEEE Trans. ASSP , Vol 34 , No. 5 , pp 1153 – 1161 , 1986 . EXTERNAL
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Steve Lyman and Craig Todd; Digital Audio Delivery to the Consumer, SMPTE Journal ( Volume: 109, Issue: 4, April 2000); SMPTE, 2000. Available at https://doi.org/10.5594/J05366
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Steve Lyman and Craig Todd; Digital Audio Delivery to the Consumer, SMPTE Journal ( Volume: 109, Issue: 4, April 2000); SMPTE, 2000. Available at https://doi.org/10.5594/J05366
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Steve Lyman and Craig Todd; Digital Audio Delivery to the Consumer, SMPTE Journal ( Volume: 109, Issue: 4, April 2000); SMPTE, 2000. Available at https://doi.org/10.5594/J05366
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<span class="citation">Steve Lyman and Craig Todd; <cite>Digital Audio Delivery to the Consumer</cite>, SMPTE Journal ( Volume: 109, Issue: 4, April 2000); SMPTE, 2000. Available at <a href="https://doi.org/10.5594/J05366" target="_blank" rel="noopener">https://doi.org/10.5594/J05366</a></span>
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Steve Lyman and Craig Todd; Digital Audio Delivery to the Consumer, SMPTE Journal ( Volume: 109, Issue: 4, April 2000); SMPTE, 2000
doi: 10.5594/J05366
url: https://doi.org/10.5594/J05366
doi: 10.5594/J05366
url: https://doi.org/10.5594/J05366
Snippet:
<li> Steve Lyman and Craig Todd; <cite id="bib-10-5594-j05366">Digital Audio Delivery to the Consumer</cite>, SMPTE Journal ( Volume: 109, Issue: 4, April 2000); SMPTE, 2000 <span class="doi">10.5594/J05366</span> </li>