Using Dynamic Time Warping of T0 contours in the evaluation of cycle-to-cycle Pitch Detection Algorithms

Abstract

This paper addresses the comparison of Pitch Detection Algorithms working on a cycle to cycle basis. An alignment problem between detected and reference pitch contours is described and a Dynamic Time Warping procedure to correct it is proposed. The method is evaluated using hand-marked real signals and three well known Pitch Detection Algorithms. Results demonstrate the occurrence of shifts in practice and the usefulness of the proposed Dynamic Time Warping procedure. © 2008 Springer-Verlag Berlin Heidelberg.