This paper presents a new approach of a signal-adaptive wavelet filterbank. The system makes use of a wavelet-packet transform, offering a completely flexible time-frequency tiling. Boundary effects can be avoided by using overlapping blocks of samples and therefore switching bases is possible at every tree-level without affecting other subbands. The filterbank can be switched based on either perceptual or rate-distortion criteria. The paper motivates the relation between compression and non-linear approximation theory and highlights the advantages of Wavelet-based compression schemes.

Authors: Erne, Markus; Moschytz, G. S.
Affiliation: Swiss Federal Institute of Technology ETHZ, Zurich, Switzerland
AES Convention: 106 (May 1999) Paper Number: 4934
Publication Date: May 1, 1999 Import into BibTeX
Subject: Audio Coding
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=8246

Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $33 for non-members and is free for AES members and E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD aes15)   /pp9900/pp9905/4909.pdf

Start a discussion about this paper!