电子与封装Issue(10)：28-30,3.
一种基于MELP模型600bps声码器的设计
A 600bps Speech Coder Based on MELP
石乔林 1韦凯 1吴辉1
作者信息
- 1. 中国电子科技集团公司第58研究所,江苏无锡214035
- 折叠
摘要
Abstract
The paper describes a 600bps speech coder based on MELP (enhanced mixed excitation linear prediction) algorithm. Consecutive three speech frames are grouped into super-frame and are jointly quantized by utilizing inter-frame redundancy in coder. The LSF vector is quantized with multi-mode predictive and multistage matrix quantization that handle mode transition by predictive coefficient and different mode in super-frames. The efficiency of the quantization is improved by joint quantization of pitch and gain. All of that make the quality of the synthetic voice better ever at 600bps.关键词
MELP/语音编码/基音周期/矢量量化Key words
MELP/speech coding/pitch period/vector quantization分类
信息技术与安全科学引用本文复制引用
石乔林,韦凯,吴辉..一种基于MELP模型600bps声码器的设计[J].电子与封装,2012,(10):28-30,3.
