Vocal Acoustic Analysis: ANN Versos SVM in Classification of Dysphonic Voices and Vocal Cords Paralysis

João Paulo Teixeira, Nuno Alves, Paula Odete Fernandes

Source Title: International Journal of E-Health and Medical Communications (IJEHMC)11(1)

ISSN: 1947-315X|EISSN: 1947-3168|EISBN13: 9781799806899|DOI: 10.4018/IJEHMC.2020010103

MLA

Teixeira, João Paulo, et al. "Vocal Acoustic Analysis: ANN Versos SVM in Classification of Dysphonic Voices and Vocal Cords Paralysis." IJEHMC vol.11, no.1 2020: pp.37-51. http://doi.org/10.4018/IJEHMC.2020010103

APA

Teixeira, J. P., Alves, N., & Fernandes, P. O. (2020). Vocal Acoustic Analysis: ANN Versos SVM in Classification of Dysphonic Voices and Vocal Cords Paralysis. International Journal of E-Health and Medical Communications (IJEHMC), 11(1), 37-51. http://doi.org/10.4018/IJEHMC.2020010103

Chicago

Teixeira, João Paulo, Nuno Alves, and Paula Odete Fernandes. "Vocal Acoustic Analysis: ANN Versos SVM in Classification of Dysphonic Voices and Vocal Cords Paralysis," International Journal of E-Health and Medical Communications (IJEHMC) 11, no.1: 37-51. http://doi.org/10.4018/IJEHMC.2020010103

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Abstract

Vocal acoustic analysis is becoming a useful tool for the classification and recognition of laryngological pathologies. This technique enables a non-invasive and low-cost assessment of voice disorders, allowing a more efficient, fast, and objective diagnosis. In this work, ANN and SVM were experimented on to classify between dysphonic/control and vocal cord paralysis/control. A vector was made up of 4 jitter parameters, 4 shimmer parameters, and a harmonic to noise ratio (HNR), determined from 3 different vowels at 3 different tones, with a total of 81 features. Variable selection and dimension reduction techniques such as hierarchical clustering, multilinear regression analysis and principal component analysis (PCA) was applied. The classification between dysphonic and control was made with an accuracy of 100% for female and male groups with ANN and SVM. For the classification between vocal cords paralysis and control an accuracy of 78,9% was achieved for female group with SVM, and 81,8% for the male group with ANN.