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
收藏
页码：738 / 740
页数：3
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