Using dynamic time warping of T0 contours in the evaluation of cycle-to-cycle Pitch Detection Algorithms

Authors:
Carlos Ferrer;Diana Torres;Marıa E. Hernández-Dıaz
Affiliations:
Center for Studies on Electronics and Information Technologies, Central University of Las Villas, C. Camajuanı, km 51/2, Santa Clara, CP 54830, Cuba;Center for Studies on Electronics and Information Technologies, Central University of Las Villas, C. Camajuanı, km 51/2, Santa Clara, CP 54830, Cuba;Center for Studies on Electronics and Information Technologies, Central University of Las Villas, C. Camajuanı, km 51/2, Santa Clara, CP 54830, Cuba
Venue:
Pattern Recognition Letters
Year:
2010

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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. Results demonstrate the occurrence of shifts in practice and the usefulness of the proposed Dynamic Time Warping procedure.