A New Pitch Detection Method Using The WRLS-VFF-VT Algorithm


The Transactions of the Korea Information Processing Society (1994 ~ 2000), Vol. 5, No. 10, pp. 2725-2736, Oct. 1998
10.3745/KIPSTE.1998.5.10.2725,   PDF Download:

Abstract

In this paper, we present a new pitch determination method for speech analysis, namely VFF(Variable Forgetting Factor) based, by using the WRLS-VFF-VT(Weighted Recursive Least Square-Variable Forgetting Factor-Variable Threshold) algorithm. A proposed method uses VFF to identify the glottal closure points which correspond to the instants of the main excitation pulses for voiced speech. The modified EGG(ElectroGlottoGraphic) based, modified LP(Linear Prediction) Error based pitch determination algorithms with variable threshold are also presented in parallel with VFF based algorithm. We will show that these algorithms provide robust pitch estimates on a period by period basis and reliable pitch detection in quasi-periodic as well as in aperiodic speech signals. To verify the performance of the proposed algorithms for its capacity to detect and identify the patterns of aperiodic/quasi-periodic voice vibration in natural human speech as well as in pathologic human speech.


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Cite this article
[IEEE Style]
L. K. Sik and P. K. Sik, "A New Pitch Detection Method Using The WRLS-VFF-VT Algorithm," The Transactions of the Korea Information Processing Society (1994 ~ 2000), vol. 5, no. 10, pp. 2725-2736, 1998. DOI: 10.3745/KIPSTE.1998.5.10.2725.

[ACM Style]
Lee Kyo Sik and Park Kyu Sik. 1998. A New Pitch Detection Method Using The WRLS-VFF-VT Algorithm. The Transactions of the Korea Information Processing Society (1994 ~ 2000), 5, 10, (1998), 2725-2736. DOI: 10.3745/KIPSTE.1998.5.10.2725.