Channel optimized matrix quantizer (COMQ) in CELP coding

Author

Pérez-Córdoba, José L. ; Rubio, Antonio ; Sánchez, Victoria E. ; de la Torre, A.

Author_Institution

Fac. de Ciencias, Univ. de Granada, Spain

Volume

3

fYear

2000

fDate

2000

Firstpage

266

Abstract

We present a study of a channel optimized matrix quantizer (COMQ) applied to quantize LSP (line spectral pair) parameters in a CELP (code excited linear prediction) coder. A modification of the DoD FS-1016 standard (Campbell et al., 1989) is used for this purpose. A Gaussian channel is considered as the channel through which information is sent and BPSK (binary phase shift-keying) is used as modulation technique. To measure the performance of this coder several channel signal to noise ratios are considered. Also, the performance of the FS-1016 standard coder is computed for comparison purposes

Keywords

AWGN channels; linear predictive coding; modulation; speech coding; vector quantisation; BPSK; CELP coding; COMQ; FS-1016 standard coder; Gaussian channel; binary phase shift-keying; channel optimized matrix quantizer; code excited linear prediction coder; line spectral pair parameters; AWGN; Code standards; GSM; Linear predictive coding; Nonlinear filters; Protection; Quantization; Signal mapping; Speech analysis; Speech synthesis;

fLanguage

English

Publisher

ieee

Conference_Titel

Pattern Recognition, 2000. Proceedings. 15th International Conference on

Conference_Location

Barcelona

ISSN

1051-4651

Print_ISBN

0-7695-0750-6

Type

conf

DOI

10.1109/ICPR.2000.903536

Filename

903536