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Convention Paper

New Improvements in ARCO (Adaptive Resolution COdec)

Authors: Pena, A. S.; Serantes, C. A.; González-Prelcic, N.

AES Convention 102 · Paper 4419 · March 1997

Abstract

The adaptive resolution codec (ARCO) coding environment is being developed with the aim of studying the feasibility of adapting both the perceptual analysis and the coding strategies to the audio signal. Some major changes have been developed in some modules, while keeping the original structure. The wavelet-packet decomposition has been improved, using different length filters as the scale changes and minimizing some boundary distortions. Perceptual and cognitive considerations are used in the bit-assignment routine to achieve a band-limited artifacts-free synthetic signal, whenever the bit-rate is not high enough to provide transparency.

Details

Published in
AES Convention 102
AES Convention
102
Paper number
4419
Publication date
March 6, 1997
Session subject
Audio Coding
Affiliation
E.T.S.E. TelecomunicaciGn, Universidade de Vigo, Vigo, Spain (See document for exact affiliation information.)
Type
Convention Paper