电话信道对语音信号参数影响的研究

A Study on the Influence of the Telephone Channel on the Speech Parameters

本文主要研究语音信号的参数受电话信道影响的情况。通过直观比较和数值距离的计算 ,比较未经过信道的语音信号和经过信道后的语音信号的参数的差别 ,从而找出受电话信道影响较小的参数。根据信道对参数的影响提出一种ACW倒谱参数 。

This paper presents a research on the effect of the telephone channel on the parametes of speech signal.By comparing directly and calculating the distances of parameters of the speech signals that pass the channel and those that do not pass the channel,this paper reveals a speech parameter with better performance.The new speech parameter called ACW cepstrum is introduced,which proves to be more robust in the telephone channel.