一种基于知觉加权的基音预测算法  

Pitch Estimation Algorithm on Perceptual Weighting

作　　者：潘丹青[1] 周德新[1] 

机构地区：[1]桂林电子工业学院通信与信息工程系,541004

出　　处：《中国科技信息》2005年第23A期15-15,11,共2页China Science and Technology Information

摘　　要：基音周期是语音信号中最重要的参数之一,基音周期预测的准确程度直接影响语音的音调。本文根据听觉掩蔽原理,把知觉加权与自相关法求基音周期的方法相结合,得出一种基于知觉加权的基音预测算法。文中介绍了该算法的基本原理并对该算法进行了仿真,仿真结果表明该算法具有较好的基音估计性能。Pitch period is one of the best important parameter in speech, and the Pitch estimation is exact or not will directly affect the tone. In this research, according to the AutocorreIation method and Perceptual weighting to find the Pitch period, and get an algorithm of Pitch estimation via perceptual weighting, In this paper introduce the base function of this algorithm and make emulator for this algorithm, through the emulator we find this is a good method to Pitch estimation.

关 键 词：基音周期 知觉加权 自相关法 LPA 

分 类 号：TN912.3[电子电信—通信与信息系统]