A Study on the Best Wavelet for Audio Compression

Author

Guido, Rodrigo Capobianco ; Maciel, Carlos Dias ; Monteiro, Maurício ; Fonseca, Everthon Silva ; Panchapagesan, Sankaran ; Pereira, José Carlos ; Vieira, Lucimar Sasso ; Júnior, Sylvio Barbon ; Guilherme, Márcio Alonso Borges ; Sérgio, Kim Inocêncio César

Author_Institution

Dept. of Phys. & Inf., Inst. of Phys. of Sao Carlos, Sao Carlos

fYear

2006

fDate

Oct. 29 2006-Nov. 1 2006

Firstpage

2115

Lastpage

2118

Abstract

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.

Keywords

audio coding; data compression; filtering theory; wavelet transforms; audio compression; audio encoding; filters; minimum bit rate wavelet-packet representation; Audio compression; Bit rate; Codecs; Cost function; Discrete wavelet transforms; Entropy; Physics; Rate-distortion; Switches; Wavelet packets; best basis trees; perceptually-transparent audio compression; wavelet-packets;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 2006. ACSSC '06. Fortieth Asilomar Conference on

Conference_Location

Pacific Grove, CA

ISSN

1058-6393

Print_ISBN

1-4244-0784-2

Electronic_ISBN

1058-6393

Type

conf

DOI

10.1109/ACSSC.2006.355141

Filename

4176951