VT-AMDF, a pitch detection algorithm

Conference proceedings article

Authors/Editors

KOSIN CHAMNONGTHAI

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Publication Details

Author list: Prukkanon N., Chamnongthai K., Miyanaga Y., Higuchi K.

Publisher: Hindawi

Publication year: 2009

Start page: 453

End page: 456

Number of pages: 4

ISBN: 9781424450169

ISSN: 0146-9428

eISSN: 1745-4557

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-77950006939&doi=10.1109%2fISPACS.2009.5383803&partnerID=40&md5=ae48a3556019b56c3d3561d42005bf5e

Languages: English-Great Britain (EN-GB)

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Abstract

This paper proposes a VT-AMDF pitch detection algorithm which based on average magnitude difference function (AMDF). Time processing is important when implement in real time system. In order to decrease computational time and complexity of pitch detection, the VT-AMDF uses only 55% of total time intervals. The method can reduce the computational time 1.3, 1.4, 4.8 and 5.4 times, compared with original AMDF, autocorrelation function (ACF), normalized square difference function (NSDF) and YIN, respectively. The experiments evaluate on seven words in five different tones of Thai isolated word. The results show that the gross error of VT-AMDF is 3.88%, which is more than original AMDF 0.48 and YIN 0.22, but less than ACF 0.54 and NSDF 1.47. ฉ2009 IEEE.

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