NEW MULTISTAGE SCHEME FOR VECTOR QUANTIZATION OF PARCOR COEFFICIENTS

被引:1
作者
CHAN, CF
LAW, KW
机构
[1] Department of Electronic Engineering, City Polytechnic of Hong Kong, Kowloon
关键词
SPEECH CODING; SIGNAL PROCESSING;
D O I
10.1049/el:19920802
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
A new multistage scheme for vector quantisation of PARCOR coefficients for low bit rate speech coding is proposed. The novelty of this scheme is that the lattice filter structure is preserved after the quantisation. This is achieved by coupling the forward and backward prediction errors across vector quantisation (VQ) stages. Simulation results show that the new scheme can achieve lower average distortion than other multistage VQ schemes.
引用
收藏
页码:1267 / 1268
页数:2
相关论文
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  • [4] [No title captured]