一种改进的MBE基音跟踪算法

An improved algorithm of pitch tracking based on MBE

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.