A Study on the Best Wavelet for Audio Compression

Rodrigo Capobianco Guido,Carlos Dias Maciel,Mauricio Monteiro,E S Fonseca,Sankaran Panchapagesan,Jose Carlos Pereira,Lucimar Sasso Vieira,Sylvio Barbon Junior, Marcio Alonso Borges Guilherme,Kim Inocencio Cesar Sergio,Thais Scarpa, P C Fantinato, Emerson Jesus Rodrigues De Moura

Pacific Grove, CA（2006）

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摘要

This paper proposes a new low cost algorithm for searching the minimum bit rate wavelet-packet representation to encode high quality general audio in a perceptual sense. Our study proposes the use of a particular family of wavelets, and the adaptive choice of the corresponding filters' length, according to the proposed cost function and the input audio file being encoded.

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关键词

audio coding,data compression,filtering theory,wavelet transforms,audio compression,audio encoding,filters,minimum bit rate wavelet-packet representation,best basis trees,perceptually-transparent audio compression,wavelet-packets,wavelet packets,cost function

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