New report available on pitch tracking (Mingyang Wu )

Subject: New report available on pitch tracking
From:    Mingyang Wu  <mwu(at)>
Date:    Mon, 4 Feb 2002 14:01:02 -0500

The following technical report is available via WWW: *************************************************************** "A Multipitch Tracking Algorithm for Noisy Speech" Technical Report #25, Dec 2001 Department of Computer and Information Science The Ohio State University *************************************************************** Mingyang Wu, The Ohio State University DeLiang Wang, The Ohio State University Guy J. Brown, The University of Sheffield An effective multipitch tracking algorithm for noisy speech is critical for acoustic signal processing. However, the performance of existing algorithms is not satisfactory. In this paper, we present a robust algorithm for multipitch tracking of noisy speech. Our approach integrates an improved channel and peak selection method, a new method for extracting periodicity information across different channels, and a hidden Markov model (HMM) for forming continuous pitch tracks. The resulting algorithm can reliably track single and double pitch tracks in a noisy environment. We suggest a pitch error measure for the multipitch situation. The proposed algorithm is evaluated on a database of speech utterances mixed with various types of interference. Quantitative comparisons show that our algorithm significantly outperforms existing ones. (13 pages, 238 KB) for WWW: A conference version of this technical report has been accepted by ICASSP2002 and can be accessed by WWW: Mingyang Wu Perception and Neurodynamics Lab. Department of Computer and Information Science The Ohio State University

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