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Authors: Yoshiaki Tadokoro 1 ; Masanori Natsui 1 ; Michiru Yamaguchi 2 and Yasuhiro Seto 1

Affiliations: 1 Toyohashi University of Technology, Japan ; 2 Toyama National College of Maritime of Technology, Japan

Keyword(s): pitch estimation, polyphony, unison, octave different tone, three-times tone, transcription.

Related Ontology Subjects/Areas/Topics: Biomedical Engineering ; Biomedical Signal Processing ; Informatics in Control, Automation and Robotics ; Signal Processing, Sensors, Systems Modeling and Control ; Time and Frequency Response ; Time-Frequency Analysis

Abstract: There are some difficult polyphony to estimate these pitches for transcription. This paper proposes two new methods for the pitch estimation of these difficult polyphony. One of them is based on the beat components of the polyphony analyzed by the short-time Fourier transform (STFT). The other is a method noticing the period of the residual signal after the elimination of polyphony components using a comb filter ( H ( z) = 1 - z - N ). These methods are based on the fact that there is a small frequency difference between the real sound and the ideal one.

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Paper citation in several formats:
Tadokoro, Y.; Natsui, M.; Yamaguchi, M. and Seto, Y. (2006). PITCH ESTIMATION OF DIFFICULT POLYPHONY SOUNDS OVERLAPPING SOME FREQUENCY COMPONENTS. In Proceedings of the Third International Conference on Informatics in Control, Automation and Robotics - Volume 2: ICINCO; ISBN 978-972-8865-61-0; ISSN 2184-2809, SciTePress, pages 168-173. DOI: 10.5220/0001206101680173

@conference{icinco06,
author={Yoshiaki Tadokoro. and Masanori Natsui. and Michiru Yamaguchi. and Yasuhiro Seto.},
title={PITCH ESTIMATION OF DIFFICULT POLYPHONY SOUNDS OVERLAPPING SOME FREQUENCY COMPONENTS},
booktitle={Proceedings of the Third International Conference on Informatics in Control, Automation and Robotics - Volume 2: ICINCO},
year={2006},
pages={168-173},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001206101680173},
isbn={978-972-8865-61-0},
issn={2184-2809},
}

TY - CONF

JO - Proceedings of the Third International Conference on Informatics in Control, Automation and Robotics - Volume 2: ICINCO
TI - PITCH ESTIMATION OF DIFFICULT POLYPHONY SOUNDS OVERLAPPING SOME FREQUENCY COMPONENTS
SN - 978-972-8865-61-0
IS - 2184-2809
AU - Tadokoro, Y.
AU - Natsui, M.
AU - Yamaguchi, M.
AU - Seto, Y.
PY - 2006
SP - 168
EP - 173
DO - 10.5220/0001206101680173
PB - SciTePress

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