Robust and fast code-excited linear predictive coding of speech signals

Author

Guyader, A. Le ; Massaloux, D. ; Petit, J.P.

Author_Institution

CNET LAA/TSS/CMC, Lannion, France

fYear

1989

fDate

23-26 May 1989

Firstpage

120

Abstract

A description is given of an efficient code-excited linear predictive (CELP) coder for bit rates between 6 and 16 kb/s, and novel effective algorithms for the selection of the excitation signal. The authors then propose a class of binary codebooks having interesting properties in terms of performance, robustness against transmission errors and flexibility in the choice of the bit rate. Due to the optimal structure of the coder and to the fast algorithms for selecting the excitation signal, a real-time implementation has been made possible on one 32-bit floating-point digital signal processor

Keywords

encoding; filtering and prediction theory; speech analysis and processing; 32 bit; 32-bit floating-point digital signal processor; 6 to 16 kbit/s; CELP; binary codebooks; code-excited linear predictive coding; coder; excitation signal; fast algorithms; real-time implementation; robustness; speech coding; transmission errors; Bit rate; Decoding; Filtering; Linear predictive coding; Nonlinear filters; Robustness; Signal processing algorithms; Signal synthesis; Speech coding; Speech synthesis;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1989. ICASSP-89., 1989 International Conference on

Conference_Location

Glasgow

ISSN

1520-6149

Type

conf

DOI

10.1109/ICASSP.1989.266378

Filename

266378