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Convention Paper

Improved Quantization and Lossless Coding for Subband Audio Coding

Authors: Edler, Bernd; Meine, Nikolaus

AES Convention 118 · Paper 6468 · May 2005

Abstract

A source coding algorithm based on the classic Markov model is presented, which uses Vector Quantization and arithmetic coding in conjunction with a dynamically adapted context of previously coded vector indices. The core of this algorithm is the numerically optimized mapping from a large number of source states to a small number of different code tables. This enables its application to audio coding, where it provides higher efficiency than the quantization and lossless coding used in MPEG-AAC.

Details

Published in
AES Convention 118
AES Convention
118
Paper number
6468
Publication date
May 6, 2005
Session subject
Low Bit Rate Audio Coding (Research)
Affiliation
University of Hannover (See document for exact affiliation information.)
Type
Convention Paper