DocumentCode :
1010827
Title :
Wideband speech and audio coding
Author :
Noll, Peter
Author_Institution :
Tech. Univ. of Berlin, Germany
Volume :
31
Issue :
11
fYear :
1993
Firstpage :
34
Lastpage :
44
Abstract :
Typical parameters of wideband speech and audio signals, including digitized versions of each, potential applications, and available transmission media, are described. Facts about human auditory perception that are exploited in audio coding and quality measures that play an important role in coder evaluations and designs are reviewed. Techniques for efficient coding of wideband speech and audio signals, with an emphasis on existing standards, are discussed. The audio coding standard developed by the Moving Pictures Expert Group within the International Organization for standardization (ISO/MPEG) is covered in some detail, since it will be used in many application areas, including digital storage, transmission, and broadcasting of audio-only signals and audiovisual applications such as videotelephony, videoconferencing, and TV broadcasting. Ongoing research and standardization work is outlined.<>
Keywords :
audio signals; encoding; speech coding; standardisation; telecommunication standards; ISO/MPEG; Moving Pictures Expert Group; TV broadcasting; audio coding; audiovisual applications; human auditory perception; quality measures; speech coding; standardization; standards; videoconferencing; videotelephony; wideband speech; Audio coding; Digital video broadcasting; Humans; ISO standards; MPEG standards; Speech coding; Standards development; Standards organizations; TV broadcasting; Wideband;
fLanguage :
English
Journal_Title :
Communications Magazine, IEEE
Publisher :
ieee
ISSN :
0163-6804
Type :
jour
DOI :
10.1109/35.256878
Filename :
256878
Link To Document :
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