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Convention Paper

An Inter-Channel Redundancy Removal Approach for High-Quality Multichannel Audio Compression

Authors: Yang, Dai; Ai, Hongmei; Kyriakakis, Chris; Kuo, C.-C. Jay

AES Convention 109 · Paper 5238 · September 2000

Abstract

A new high-quality multichannel audio compression algorithm based on the MPEG-2 Advanced Audio Coding (AAC) is presented in this paper. The Karhunen-Loeve Transform (KLT) is used on multichannel audio signals in the preprocessing stage to remove the interchannel redundancy. Then signals in the decorrelated channels are compressed using a modified AAC main profile encoder. Experimental results show that compared to the original AAC, the proposed algorithm achieves better performance with the objective mask-to-noise-ratio (MNR) measurement while maintaining similar computational complexity.:

Details

Published in
AES Convention 109
AES Convention
109
Paper number
5238
Publication date
September 6, 2000
Session subject
Multichannel Sound
Affiliation
Integrated Media Systems Center, University of Southern California, Los Angeles, CA (See document for exact affiliation information.)
Type
Convention Paper