改善基音估计准确度的有效途径  

The Efficient Way to Improve the Accuracy of Pitch Estimation

作　　者：杜立昌[1] 朱仁峰[1] 周辉[1] 

机构地区：[1]装备指挥技术学院电子工程系,北京101416

出　　处：《装备指挥技术学院学报》2005年第5期108-111,共4页Journal of the Academy of Equipment Command & Technology

基　　金：部委级资助项目

摘　　要：基音周期是语音信号处理中的重要参数,基音周期估计的准确度对合成语音的质量有决定性作用.讨论了多带激励(multi-band excitation,MBE)语音编码模型中,对自相关基音周期估计的2种改善方法:数值滤波和动态基音平滑技术,由此可以得到更精确的基音轮廓.实验证明:在多带激励语音编码模型中,结合这2种改进方法,可有效提高基音周期估计的准确度.Pitch is the important parameter in speech signal processing. The accuracy of pitch estimation plays a key role in speech synthesis. Based on MBE（multi-band excitation） model, the paper discusses two methods to improve the accuracy of pitch estimation, numerical filtering and dynamic pitch smoothing. Experimental results show that in the MBE model, the methods of this article can improve the accuracy of pitch estimation efficiently.

关 键 词：基音估计 数值滤波 动态平滑 

分 类 号：TN912.3[电子电信—通信与信息系统]