一种浊音语音原型波形内插算法  

A prototype waveform interpolation algorithm for voiced speech

作　　者：史学晶[1] 赵淑清[1] 

机构地区：[1]北京化工大学信息科学与技术学院,北京100029

出　　处：《电声技术》2003年第12期4-6,共3页Audio Engineering

摘　　要：浊音语音可以看作是慢变化的基音周期波形的连接。文中介绍的原波形内插算法利用了浊音语音的周期性,每隔20～30ms提取一单个的基音周期波形,然后在更新点处进行内插重建语音信号。用此方法进行语音编码可大大降低编码率。Voiced speech is interpreted as a concatenation of slowly evolving pitch cycle waveforms.Prototype waveform interpolation(PWI )algorithm described in this paper uses the periodicity of a voiced speech signal.The waveform of a single pitch cycle is transmitted at regular intervals(of20～30ms )and then interpolated between update points.With this method,speech coding rate will reduce greatly.[

关 键 词：浊音语音 基音周期波形 原波形内插 语音编码 

分 类 号：TN912.31[电子电信—通信与信息系统]