A Modified Noise-robust Method for Pitch Period Detection
Xueying Zhang · Journal of Taiyuan University of Technology · 2008
A modified noise-robust method for pitch period detection is presented.It combines autocorrection energy function and magnitude difference energy function based on autocorrection function(ACF) and average magnitude difference function(AMDF).The method inherits noise-robust performance of ACF and has enhanced the period peak by energy function,moreover improves the estimation accuracy in noise environment.It overcomes the halving and doubling errors compared with ACF.The experiment shows that the algorithm is simple and feasible,but has good performance in noise-robust.It can detect pitch period accurately without any procession with noise.