文章基本信息

标题：An Even Grid Based Lattice Vector Quantization Algorithm for Mobile Audio Coding
本地全文：下载
作者：Hang, Bo ; Wang, Xiaochen ; Hu, Ruimin 等
期刊名称：Journal of Multimedia
印刷版ISSN：1796-2048
出版年度：2011
卷号：6
期号：3
页码：261-268
DOI：10.4304/jmm.6.3.261-268
语种：English
出版社：Academy Publisher
摘要：This paper proposed an even grid based lattice vector quantization method for audio coding. The method uses energy priority, with basic code book and the ball-type expansion, which is applicable to the low rate of the variable-rate vector quantization coding. The method uses the lattice characteristics to resolve rapid index distribution problem, as well as the compression of the basic code book. The experiment results show that the proposed method is as good as vector quantization method in ITU-T standard G729.1 in quality, with lower storage cost and computational complexity.
关键词：even grid;lattice vector quantization;variable rate;ball-type expansion;index distribution