基于ADPCM的语音压缩算法研究  

A Speech Compression Algorithm on ADPCM

作　　者：廖广锐[1] 刘萍[1] 

机构地区：[1]武汉数字工程研究所,武汉430074

出　　处：《计算机与数字工程》2007年第7期39-41,共3页Computer & Digital Engineering

摘　　要：ADPCM算法目前已成为很受用的语音压缩算法之一。给出PCM概念。讨论DPCM,DM,ADM与ADPCM的压缩算法原理以及算法实现流程框图。通过实验,指出每个算法的特征。实验结果进一步证实ADPCM算法既能够有效的压缩语音,又能还原出高质量的语音。Nowadays, ADPCM algorithm is one of the useful speech compression algorithm. We first introduce the concept of PCM. Then we discuss the principle of DPCM, DM, ADM, ADPCM compression algorithm and its implementation flowchart. Finally, we poiot out the character of every algorithm through experiments. The experiments results show that ADPCM algorithm can not only compression speech effectively, but also decode high quality of speech.

关 键 词：语音压缩 脉冲编码调制 自适应增量调制 自适应差分脉冲编码调制 

分 类 号：TP311.5[自动化与计算机技术—计算机软件与理论]