Low-complexity predictive trellis coded quantization of wideband speech LSF parameters

Author

Shin, Yongwon ; Kang, Sangwon ; Fischer, Thomas R. ; Son, Changyong ; Lee, YongBeom

Author_Institution

Telecommun. R&D Center, Samsung Electron. Co. Suwon, South Korea

Volume

1

fYear

2004

fDate

17-21 May 2004

Abstract

In this paper, low-complexity block-constrained trellis coded quantization (BC-TCQ) structures are introduced, and a predictive BC-TCQ encoding method is developed for quantization of line spectrum frequencies (LSF) parameters for wideband speech coding applications. The performance is compared to the linear predictive coding (LPC) vector quantizers used in the AMR-WB (ITU-G.722.2) speech coding standard, demonstrating reduction in spectral distortion and significant reduction in encoding complexity.

Keywords

prediction theory; speech coding; trellis codes; BC-TCQ; block-constrained trellis coded quantization; encoding complexity reduction; line spectrum frequencies; low-complexity quantization; performance; predictive encoding; predictive trellis coded quantization; spectral distortion reduction; wideband speech LSF parameters; wideband speech coding; Convolutional codes; Encoding; Frequency; Linear predictive coding; Rate-distortion; Research and development; Speech coding; Vector quantization; Viterbi algorithm; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 2004. Proceedings. (ICASSP '04). IEEE International Conference on

ISSN

1520-6149

Print_ISBN

0-7803-8484-9

Type

conf

DOI

10.1109/ICASSP.2004.1325943

Filename

1325943