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Perceptual Coding of Digital Audio (2000)
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| Venue: | Proceedings of the IEEE |
| Citations: | 157 - 3 self |
BibTeX
@INPROCEEDINGS{Painter00perceptualcoding,
author = {Ted Painter and Andreas Spanias},
title = {Perceptual Coding of Digital Audio},
booktitle = {Proceedings of the IEEE},
year = {2000},
pages = {451--513},
publisher = {}
}
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Abstract
During the last decade, CD-quality digital audio has essentially replaced analog audio. Emerging digital audio applications for network, wireless, and multimedia computing systems face a series of constraints such as reduced channel bandwidth, limited storage capacity, and low cost. These new applications have created a demand for high-quality digital audio delivery at low bit rates. In response to this need, considerable research has been devoted to the development of algorithms for perceptually transparent coding of high-fidelity (CD-quality) digital audio. As a result, many algorithms have been proposed, and several have now become international and/or commercial product standards. This paper reviews algorithms for perceptually transparent coding of CD-quality digital audio, including both research and standardization activities. The paper is organized as follows. First, psychoacoustic principles are described with the MPEG psychoacoustic signal analysis model 1 discussed in some detail. Next, filter bank design issues and algorithms are addressed, with a particular emphasis placed on the Modified Discrete Cosine Transform (MDCT), a perfect reconstruction (PR) cosine-modulated filter bank that has become of central importance in perceptual audio coding. Then, we review methodologies that achieve perceptually transparent coding of FM- and CD-quality audio signals, including algorithms that manipulate transform components, subband signal decompositions, sinusoidal signal components, and linear prediction (LP) parameters, as well as hybrid algorithms that make use of more than one signal model. These discussions concentrate on architectures and applications of
Keyphrases
digital audio transparent coding perceptual coding cd-quality digital audio sinusoidal signal component linear prediction cosine-modulated filter bank last decade central importance reduced channel bandwidth signal model signal decomposition hybrid algorithm perfect reconstruction filter bank design issue digital audio application standardization activity cd-quality audio signal many algorithm high-quality digital audio delivery transform component considerable research psychoacoustic principle low bit rate mpeg psychoacoustic signal analysis model low cost new application commercial product standard perceptual audio coding limited storage capacity modified discrete cosine transform analog audio particular emphasis
