语音信号的自相关基音周期检测  

Autocorrelation Pitch Period Detection of Voice Signal

作　　者：赵萍[1] 

机构地区：[1]上海电力学院计算机与信息工程学院,上海200090

出　　处：《上海电力学院学报》2011年第3期297-300,共4页Journal of Shanghai University of Electric Power

摘　　要：自相关基音周期检测是语音信号处理的关键技术,除了保证信号处理的质量外还要注重算法的效率.通过短时自相关函数得到浊音语音的基音周期,在自相关运算过程中采用极性相关法和峰值估算法以提高运算效率.Autocorrelation pitch period detection is a key technique in voice signal process.Efficiency of the algorithm is also important except for the quality of the signal process.Pitch period of the dull sound is obtained through the short-time autocorrelation function,and polarity correlation and peak value estimation are used to raise the efficiency in the process of the autocorrelation.

关 键 词：自相关 基音周期 极性相关 

分 类 号：TM912.34[电气工程—电力电子与电力传动]