Analysis-by-synthesis multimode harmonic speech coding at 4 kb/s

被引：0
|
作者：
Li, CY [1 ]
Cuperman, V [1 ]
机构：
[1] Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA
来源：
2000 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, PROCEEDINGS, VOLS I-VI | 2000年
关键词：
D O I：
暂无
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
This paper presents a 4 kb/s Analysis-by-Synthesis Multimode Harmonic Coder (AbS-MHC). Novel features of this coder include a signal modification technique that allows time-domain analysis-by-synthesis parameter estimation in sinusoidal coding framework, and a frequency-domain transition speech model with improved parameter estimation and quantization schemes. An efficient quantization scheme for harmonic magnitudes based on Weighted Non-Square Transform Vector Quantization (WNSTVQ) is also used. Subjective quality tests indicate that the 4 kb/s AbS-MHC coder outperforms the 5.3 kb/s G.723.1 standard CELP coder and produces speech quality very similar to the 6.3 kb/s G.723.1 coder.
引用
收藏
页码：1367 / 1370
页数：4
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