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The first objective of MPEG-2 Audio was the extension from two to five channels, based on recommendations from ITU-R, SMPTE and EBU. This was achieved in November 1994 with the approval of ISO/IEC 13818-3, known as MPEG-2 Audio. This standard provides high quality coding of 5+1 audio channels together with backwards compatibility to MPEG-1 - the key to ensure that existing 2-channel decoders will still be able to decode the compatible stereo information from multi-channel signals. For audio reproduction of surround sound the loudspeaker positions left, center, right, left and right surround are used - according to the 3/2-standard. The envisaged applications are beside digital television systems such as dTTb, HDTVT, HD-SAT, ADDT, digital storage media and the EU147 Digital Audio Broadcasting system. The second objective was the extension of MPEG-1 Audio to lower sampling rates to improve the audio quality at bit rates less than 64 kbit/s per channel, in particular for speech applications. This is of particular interest for the EU147 DAB system to provide high quality news channels at the lowest bit rate.
Author (s): Stoll, Gerhard;
Affiliation:
Institut for Rundfunktechnik, Munchen, Germany
(See document for exact affiliation information.)
Publication Date:
1995-05-06
Session subject:
DAB (The Future of Radio)
DOI:
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Stoll, Gerhard; 1995; New Developments in MPEG-2 Audio: Extension to Multi-Channel Sound and Improved Coding at Very Low Bit Rates [PDF]; Institut for Rundfunktechnik, Munchen, Germany; Paper DAB-06; Available from: https://aes.org/publications/elibrary-page/?id=7115
Stoll, Gerhard; New Developments in MPEG-2 Audio: Extension to Multi-Channel Sound and Improved Coding at Very Low Bit Rates [PDF]; Institut for Rundfunktechnik, Munchen, Germany; Paper DAB-06; 1995 Available: https://aes.org/publications/elibrary-page/?id=7115
@inproceedings{Stoll1995new,
title={{New Developments in MPEG-2 Audio: Extension to Multi-Channel Sound and Improved Coding at Very Low Bit Rates}},
author={Stoll, Gerhard},
year={1995},
month={may},
booktitle={Journal of the Audio Engineering Society},
publisher={Paper DAB-06; AES Conference: UK 10th Conference: The Future of Radio (DAB); May 1995},
number={DAB-06},
organization={AES},
}
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