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.
出处
《上海电力学院学报》
CAS
2011年第3期297-300,共4页
Journal of Shanghai University of Electric Power
关键词
自相关
基音周期
极性相关
autocorrelation
pitch period
polarity correlation
