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1. 发明授权

US07305337B2 Method and apparatus for speech coding and decoding 有权
标题翻译：用于语音编码和解码的方法和装置
公开(公告)号：US07305337B2
公开(公告)日：2007-12-04
申请号：US10328486
申请日：2002-12-24
申请人： Jhing-Fa Wang , Jia-Ching Wang , Yun-Fei Chao , Han-Chiang Chen , Ming-Chi Shih
发明人： Jhing-Fa Wang , Jia-Ching Wang , Yun-Fei Chao , Han-Chiang Chen , Ming-Chi Shih
IPC分类号： G10L11/04
CPC分类号： G10L19/012 , G10L19/08 , G10L19/18
摘要： The present invention includes a method for speech encoding and decoding and a design of speech coder and decoder. The characteristic of speech encoding method relies on the type of data with high compression rate after the whole speech data is compressed. The present invention is able to lower the bit rate of the original speech from 64 Kbps to 1.6 Kbps and provide a bit rate lower than the traditional compression method. It can provide good speech quality, and attain the function of storing the maximum speech data with minimum memory. As to the speech decoding method, some random noises are appropriated added into the exciting source, so that more speech characteristics can be simulated to produce various speech sounds. In addition, the present invention also discloses a coder and a decoder designed by application specific integrated circuit, and the structural design is optimized according to the software. Its operating speed is much faster than the digital signal processor, and suits the system requiring fast computation speed such as multiple line encoding; its cost is also lower than the digital signal processor.
摘要翻译：本发明包括语音编码和解码的方法以及语音编码器和解码器的设计。语音编码方法的特点是在整个语音数据压缩之后依赖于具有高压缩率的数据类型。本发明能够将原始语音的比特率从64Kbps降低到1.6Kbps，并提供比传统压缩方法低的比特率。它可以提供良好的语音质量，并且具有以最小记忆存储最大语音数据的功能。对于语音解码方法，将一些随机噪声加入到激励源中，从而可以模拟更多的语音特征以产生各种语音。此外，本发明还公开了一种由专用集成电路设计的编码器和解码器，并且根据该软件优化结构设计。其运行速度比数字信号处理器快得多，适合需要快速计算速度的系统，如多行编码; 其成本也低于数字信号处理器。

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