Speech nonfluency detection and classification based on linear prediction coefficients and neural networks

• Autorzy: Kobus A. , Kuniszyk-Jóźkowiak W. , Smołka E. , Codello I.
• Języki publikacji: EN

Abstrakty

EN

The goal of the paper is to present a speech nonfluency detection method based on linear prediction coefficients obtained by using the covariance method. The application “Dabar” was created for research. It implements three different methods of LP with the ability to send coefficients computed by them into the input of Kohonen networks. Neural networks were used to classify utterances in categories of fluent and nonfluent. The first one was Kohonen network (SOM), used to reduce LP coefficients representation of each window, which were used as input data to SOM input layer, to a vector of winning neurons of SOM output layer. Radial Basis Function (RBF) networks, linear networks and Multi-Layer Perceptrons were used as classifiers. The research was based on 55 fluent samples and 54 samples with blockades on plosives (p, b, d, t, k, g). The examination was finished with the outcome of 76% classifying.

Słowa kluczowe

EN

linear prediction; LPC; neural networks; Kohonen; covariance; nonfluency; speech; detection; perceptron; radial

PL

przewidywanie liniowe; liniowe kodowanie predykcyjne; sieci nuronowe; kowariancja; brak płynności; mowa; wykrywanie; perceptron

• Wydawca: University of Silesia, Institute of Informatics, Computer Systems Department
• Czasopismo: Journal of Medical Informatics & Technologies
• Rocznik: 2010
• Tom: Vol. 15
• Strony: 135--143
• Opis fizyczny: Bibliogr. 8 poz., rys., tab.

Twórcy

autor

Kobus A.

• Institute of Computer Science, Marie Curie-Skłodowska University, Pl. M. Curie-Skłodowskiej 1, 20-031 Lublin, Poland

autor

Kuniszyk-Jóźkowiak W.

autor

Smołka E.

autor

Codello I.

Bibliografia

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• [4] CODELLO I., KUNISZYK–JÓŹKOWIAK W., Digital signals analysis with the LPC method, Annales UMCS Informatica. Vol. 5, Lublin, 2006, pp. 315–323.
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• [7] SZCZUROWSKA I., KUNISZYK–JÓŹKOWIAK W., SMOŁKA E., Speech nonfluency detection using Kohonen networks, Neural Computing & Applications, Springer, Vol. 18, Number 7, London, 2009, pp. 677–687.
• [8] TEBELSKIS J., Speech Recognition using Neural Networks, Ph. D. Dissertation, Carnegie Mellon University, Pittsburgh, 1995, pp. 101–146.