语音信号短时能量及短时幅值对比分析  

Analysis of Short-Time Energy and Amplitude of Audio Signal

作　　者：刘琦[1] 

机构地区：[1]河南警察学院信息安全系,河南450002

出　　处：《网络安全技术与应用》2011年第9期78-79,共2页Network Security Technology & Application

基　　金：河南省自然科学基金项目(092300410153)资助

摘　　要：本文阐述了短时能量和短时幅值的计算公式及对语音信号的应用价值。文中选择两种窗函数:矩形窗和汉明窗对原始音频信号进行截短。理论研究和实验结果说明了这两类参数能够直接反映出音频信号的能量分布及幅值大小变化,从而能够直接判断出语音信号中每个音节的起始端点和结束端点。It was described the calculation of short-time energy and amplitude of audio signal and their value.Two window functions was selected in this paper.Theory study and experimental results show that the position of every syllable could be decided directly by short-time energy or amplitude.

关 键 词：短时能量 短时幅值 语音信号 

分 类 号：TN912.3[电子电信—通信与信息系统]