文章基本信息

标题：Block Constrained Trellis Coded Vector Quantization of LSF Parameters for Wideband Speech Codecs
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作者：Park, Jung-Eun ; Kang, Sang-Won
期刊名称：ETRI Journal
印刷版ISSN：1225-6463
电子版ISSN：2233-7326
出版年度：2008
卷号：30
期号：5
页码：738-740
语种：English
出版社：Electronics and Telecommunications Research Institute
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 AMRWB codec, demonstrating reductions in spectral distortion.
关键词：Speech coding;quantization;trellis coded vector quantization;LSF parameters