语音编码技术的分析与应用

Analysis and the use of speech coding technology

对语音编码技术的特点进行了分析与研究 ,对波形编码、声码器和混合编码三种主要的语音编码进行了比较 ,并介绍了GSM和CDMA两种系统语音编码及部分常用语音编码芯片 ,指出了语音编码技术的发展趋势 ,并根据矿井井下特点 ,对矿井通信系统所采用的语音编码技术进行了研究 。

The characteristics of speech coding are analysed.Three main kinds of speech coding,that is,waveform coding,vocoder and hybrid coding are compared.GSM?CDMA and some usual chips of speech coding are presented.The developing tendency of speech coding are pointed out.On the basis of the characteristics of underground mines,the speech coding of underground mine communication system is studied.Several useful conclusions are obtained.