基于电力载波通信的低码率语音压缩编码的方法及分析

Methods and Analysis About the Low-bit-rate Speech Compression Coding Based on Power Carrier Communication

近年来 ,由于数字通信及其他商业应用的需求 ,语音压缩技术得到了迅速发展 ,针对目前几种具有代表性的低速率语音压缩编码算法 (如 :LPC声码器 ,CELP ,MBE ,PWI ,小波变换等 )进行分析和比较 ,介绍各自的基本原理 ,并在此基础上分析了各自的优。

Speech compression has advanced rapidly in recent years spurred by digital communication and diverse commercial applications. Some kinds of typical algorithms about low-bit-rate speech compression coding at present have been analysed and compared,for example:LPC Vocoder,CELP,MBE,PWI,wavelet transform.Their fundamental are introduced and on this basis their advantages, disadvantages and practical applications are analysed in this paper.