Messanae Universitas Studiorum

Compressione di segnali vocali mediante decomposizione spline-wavelet

Di Francesco, M. L. and Giordano, G. V. (1994) Compressione di segnali vocali mediante decomposizione spline-wavelet. Accademia Peloritana dei Pericolanti, Classe di Scienze FF. MM. NN., LXXII. pp. 305-359.

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Abstract

It has already been shown that the $wavelet-packet$ decomposition may be successfully applied to the analysis, compression and synthesis of the finite energy signals. We present our results on the compression of speech signals using several kind of wavelt: the Daubechies orthonormal wavelet-packet basis and the Chui non orthogonal wavelet-packet basis derived from linear and cubic B-spline. The obtained compression ratios (rancing from 10 to 12) with distortion less than 5-6% demonstrated that the basis of linear Chui wavelet-packets is very useful for the speech compression.

Item Type: Article
Subjects: M.U.S. - Miscellanea > Atti Accademia Peloritana > Classe di Scienze Fisiche, Matematiche e Naturali > 1994
M.U.S. - Miscellanea > Atti Accademia Peloritana > Classe di Scienze Medico-Biologiche > 1994
M.U.S. - Miscellanea > Atti Accademia Peloritana > Classe di Scienze Giuridiche, Economiche e Politiche > 1994
M.U.S. - Miscellanea > Atti Accademia Peloritana > Classe di Lettere, Filosofia e belle Arti > 1994
Depositing User: Dr A F
Date Deposited: 19 Sep 2012 11:42
Last Modified: 20 Sep 2012 07:52
URI: http://cab.unime.it/mus/id/eprint/692

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