Selection of Optimum Mother Wavelet Function for Turkish Phonemes

Authors

DOI:

https://doi.org/10.18100/ijamec.556850

Keywords:

Discrete wavelet transform, energy, entropy, information theoretic measure, mother wavelet selection

Abstract

In this paper, we propose the selection of most suitable mother wavelet function for Turkish phonemes using discrete wavelet transform. The determination of most similar mother wavelet function to the signal has been a challenge in speech processing. The optimum mother wavelet function for Turkish phonemes have been determined by using quantitative measures which are energy and Shannon entropy, information theoretic measures which are joint entropy, conditional entropy, mutual information, and relative entropy from wavelet coefficients of the phonemes. In this study, 101 potential functions were investigated to determine the most appropriate mother wavelet. Experimental results show that the most appropriate wavelet functions for /ç/ and /ş/ phonemes which are unvoiced fricatives have been found as Bi-orthogonal 3.9 and Bi-orthogonal 5.5, respectively. By considering all the results, it is seen that the Bi-orthogonal 3.1 and Discrete Meyer wavelet functions are the most suitable mother wavelets for all other phonemes.

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Published

30-09-2019

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Research Articles

How to Cite

[1]
“Selection of Optimum Mother Wavelet Function for Turkish Phonemes”, J. Appl. Methods Electron. Comput., vol. 7, no. 3, pp. 56–64, Sep. 2019, doi: 10.18100/ijamec.556850.

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