A magnetic resonance imaging study on the articulatory and acoustic speech parameters of Malay vowels

Zourmand, Alireza and Mirhassani, Seyed Mostafa and Ting, Hua Nong and Bux, Shaik Ismail and Ng, Kwan Hoong and Bilgen, Mehmet and Jalaludin, Mohd Amin (2014) A magnetic resonance imaging study on the articulatory and acoustic speech parameters of Malay vowels. BioMedical Engineering OnLine, 13 (1). p. 103. ISSN 1475-925X

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Official URL: https://doi.org/10.1186/1475-925X-13-103

Abstract

The phonetic properties of six Malay vowels are investigated using magnetic resonance imaging (MRI) to visualize the vocal tract in order to obtain dynamic articulatory parameters during speech production. To resolve image blurring due to the tongue movement during the scanning process, a method based on active contour extraction is used to track tongue contours. The proposed method efficiently tracks tongue contours despite the partial blurring of MRI images. Consequently, the articulatory parameters that are effectively measured as tongue movement is observed, and the specific shape of the tongue and its position for all six uttered Malay vowels are determined.Speech rehabilitation procedure demands some kind of visual perceivable prototype of speech articulation. To investigate the validity of the measured articulatory parameters based on acoustic theory of speech production, an acoustic analysis based on the uttered vowels by subjects has been performed. As the acoustic speech and articulatory parameters of uttered speech were examined, a correlation between formant frequencies and articulatory parameters was observed. The experiments reported a positive correlation between the constriction location of the tongue body and the first formant frequency, as well as a negative correlation between the constriction location of the tongue tip and the second formant frequency. The results demonstrate that the proposed method is an effective tool for the dynamic study of speech production. © 2014 Zourmand et al.; licensee BioMed Central Ltd.

Item Type: Article
Uncontrolled Keywords: Acoustic parameters; Active contour; Articulators' movements; Formant frequencies; Malay vowel sounds; Vocal tract shape
Subjects: R Medicine
Divisions: Faculty of Engineering
Faculty of Medicine
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 19 Nov 2019 07:02
Last Modified: 19 Nov 2019 07:02
URI: http://eprints.um.edu.my/id/eprint/23059

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