Block Constrained Trellis Coded Vector Quantization of LSF Parameters for Wideband Speech Codecs

被引：3

作者：

Park, Jungeun ^{[1
]}

Kang, Sangwon ^{[1
]}

机构：

[1] Hanyang Univ, Sch Elect Engn & Comp Sci, Ansan, South Korea

来源：

ETRI JOURNAL | 2008年 / 30卷 / 05期

关键词：

Speech coding; quantization; trellis coded vector quantization; LSF parameters;

D O I：

10.4218/etrij.08.0208.0129

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper block constrained trellis coded vector quantization (BC-TCVQ) is presented for quantizing the line spectrum frequency parameters of the wideband speech codec. Both a predictive structure and a safety-net concept are combined into BC-TCVQ to develop the predictive BC-TCVQ The performance of this quantization is compared with that of the linear predictive coding vector quantizer used in the AMR-WB codec, demonstrating reductions in spectral distortion.

引用

页码：738 / 740

页数：3

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