一种改进的MBE基音跟踪算法  

An improved algorithm of pitch tracking based on MBE

作　　者：黄姗姗[1] 许钢[1] 李远军[1] HUANG Shan-shan;XU Gang;LI Yuan-jun(Anhui Key Laboratory of Electric Drive and Control,Anhui Polytechnic University,Wuhu 241000,China)

机构地区：[1]安徽工程大学安徽省电气传动与控制重点实验室,安徽芜湖241000

出　　处：《安徽工程大学学报》2012年第4期49-52,共4页Journal of Anhui Polytechnic University

基　　金：安徽高校省级自然科学研究产学研重点基金资助项目(KJ2011A035)

摘　　要：通过对基音周期慢时变特性的研究,提出了一种改进的MBE基音跟踪算法.该算法旨在减少运算量,提升基音检测的实时性,将传统的基音跟踪算法改进为前后向各跟踪一帧.仿真实验表明,改进算法与传统算法对基音跟踪均取得了良好的效果,但是新算法计算量大幅度减少,执行速度明显提升.By studying the slow time-varying characteristics of pitch period,an improved pitch tracking algorithm based on MBE is proposed.The algorithm,which tracks only one frame data forward and backward respectively compared with the traditional one,aims to reduce calculations and upgrade the realtime performance of pitch detection.The result of simulation experiment shows that both the new algorithm and the traditional one can achieve good effect of pitch tracking.But the calculations for the new algorithm are reduced remarkably and execution speed improved a lot.

关 键 词：MBE 基音跟踪 基音周期 初始估计 

分 类 号：TN912.3[电子电信—通信与信息系统]