DocumentCode :
411517
Title :
A novel approach to variable dimension vector quantization of harmonic magnitudes
Author :
Chu, Wai C.
Author_Institution :
Mobile Media Lab., DoCoMo USA Labs, San Jose, CA, USA
Volume :
1
fYear :
2003
fDate :
18-20 Sept. 2003
Firstpage :
537
Abstract :
Harmonic coders explore the harmonic structure of a given signal to represent it efficiently, and have become quite successful recently where several standardized speech coders are based upon it. Quantization of harmonic magnitudes is an integral component of harmonic coders. Since the harmonic magnitude sequences can be considered as vectors of variable dimension, the technique of variable dimension vector quantization (VDVQ) is highly suitable for their representation. In this paper a novel implementation of VDVQ is described; experimental data show the superiority of the technique which is compared to existent methods.
Keywords :
harmonic analysis; speech coding; vector quantisation; vocoders; harmonic coders; harmonic magnitude sequences; speech coders; variable dimension vector quantization; Code standards; Frequency; Harmonic analysis; Nonlinear filters; Performance analysis; Power harmonic filters; Signal analysis; Signal processing algorithms; Speech coding; Vector quantization;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Image and Signal Processing and Analysis, 2003. ISPA 2003. Proceedings of the 3rd International Symposium on
Print_ISBN :
953-184-061-X
Type :
conf
DOI :
10.1109/ISPA.2003.1296955
Filename :
1296955
Link To Document :
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