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Convention Paper

On Locality of Spectral Oriented Tree for Bit-Plane Based Low-Bit Rate Audio Coding

Authors: Su, Alvin W.Y.; Wang, Yu-Lin

AES Convention 124 · Paper 7482 · May 2008

Abstract

For Spectral Oriented Trees (SOT) based coders such as SPIHT and CEIHT, locality is usually related to the locations of coefficients within a SOT and its effect to coding efficiency. How to construct a SOT to achieve better locality is very important. This paper presents a diagnostic aspect of the localities of different ordering techniques for low bit-rate audio coding. We used several coefficient ordering schemes to construct SOTs with the same set of MDCT coefficients and observed their effects. Both objective and subjective results are presented.

Details

Published in
AES Convention 124
AES Convention
124
Paper number
7482
Publication date
May 6, 2008
Session subject
Low Bit-Rate Audio Coding
Affiliation
SCREAM Lab. CSIE. NCKU (See document for exact affiliation information.)
Type
Convention Paper