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Convention Paper

Perceptual Audio Coding and the Choice of an Analysis/Synthesis Filter Bank and Psychoacoustic Model

Authors: Ferreira, Anibal J. S.

AES Convention 104 · Paper 4671 · May 1998

Abstract

The success of a perceptual audio coder depends strongly on the joint efficiency of three of its main building blocks: the analysis/synthesis filter bank, the psychoacoustic model and the quantizer. This paper focuses on the combined choice of an appropriate filter bank and an accurate psychoacoustic model. A few statistical results concerning stationarity and harmonicity are used to discuss the objective and subjective coding gain, the necessity to address multiresolution, and the pertinence of including aspects of pitch and timbre perception in perceptual modeling. Specific solutions are proposed.

Details

Published in
AES Convention 104
AES Convention
104
Paper number
4671
Publication date
May 6, 1998
Session subject
Perceptual Coding
Affiliation
FEUP/INESC, Porto, Portugal (See document for exact affiliation information.)
Type
Convention Paper