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An Investigation of Vocal Tract Characteristics for Acoustic Discrimination of Pathological Voices

This paper investigates the effectiveness of measures related to vocal tract characteristics in classifying normal and pathological speech. Unlike conventional approaches that mainly focus on features related to the vocal source, vocal tract characteristics are examined to determine if interaction e...

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Autores principales: Lee, Jung-Won, Kang, Hong-Goo, Choi, Jeung-Yoon, Son, Young-Ik
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3832970/
https://www.ncbi.nlm.nih.gov/pubmed/24288686
http://dx.doi.org/10.1155/2013/758731
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author Lee, Jung-Won
Kang, Hong-Goo
Choi, Jeung-Yoon
Son, Young-Ik
author_facet Lee, Jung-Won
Kang, Hong-Goo
Choi, Jeung-Yoon
Son, Young-Ik
author_sort Lee, Jung-Won
collection PubMed
description This paper investigates the effectiveness of measures related to vocal tract characteristics in classifying normal and pathological speech. Unlike conventional approaches that mainly focus on features related to the vocal source, vocal tract characteristics are examined to determine if interaction effects between vocal folds and the vocal tract can be used to detect pathological speech. Especially, this paper examines features related to formant frequencies to see if vocal tract characteristics are affected by the nature of the vocal fold-related pathology. To test this hypothesis, stationary fragments of vowel /aa/ produced by 223 normal subjects, 472 vocal fold polyp subjects, and 195 unilateral vocal cord paralysis subjects are analyzed. Based on the acoustic-articulatory relationships, phonation for pathological subjects is found to be associated with measures correlated with a raised tongue body or an advanced tongue root. Vocal tract-related features are also found to be statistically significant from the Kruskal-Wallis test in distinguishing normal and pathological speech. Classification results demonstrate that combining the formant measurements with vocal fold-related features results in improved performance in differentiating vocal pathologies including vocal polyps and unilateral vocal cord paralysis, which suggests that measures related to vocal tract characteristics may provide additional information in diagnosing vocal disorders.
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spelling pubmed-38329702013-11-28 An Investigation of Vocal Tract Characteristics for Acoustic Discrimination of Pathological Voices Lee, Jung-Won Kang, Hong-Goo Choi, Jeung-Yoon Son, Young-Ik Biomed Res Int Research Article This paper investigates the effectiveness of measures related to vocal tract characteristics in classifying normal and pathological speech. Unlike conventional approaches that mainly focus on features related to the vocal source, vocal tract characteristics are examined to determine if interaction effects between vocal folds and the vocal tract can be used to detect pathological speech. Especially, this paper examines features related to formant frequencies to see if vocal tract characteristics are affected by the nature of the vocal fold-related pathology. To test this hypothesis, stationary fragments of vowel /aa/ produced by 223 normal subjects, 472 vocal fold polyp subjects, and 195 unilateral vocal cord paralysis subjects are analyzed. Based on the acoustic-articulatory relationships, phonation for pathological subjects is found to be associated with measures correlated with a raised tongue body or an advanced tongue root. Vocal tract-related features are also found to be statistically significant from the Kruskal-Wallis test in distinguishing normal and pathological speech. Classification results demonstrate that combining the formant measurements with vocal fold-related features results in improved performance in differentiating vocal pathologies including vocal polyps and unilateral vocal cord paralysis, which suggests that measures related to vocal tract characteristics may provide additional information in diagnosing vocal disorders. Hindawi Publishing Corporation 2013 2013-10-31 /pmc/articles/PMC3832970/ /pubmed/24288686 http://dx.doi.org/10.1155/2013/758731 Text en Copyright © 2013 Jung-Won Lee et al. https://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Lee, Jung-Won
Kang, Hong-Goo
Choi, Jeung-Yoon
Son, Young-Ik
An Investigation of Vocal Tract Characteristics for Acoustic Discrimination of Pathological Voices
title An Investigation of Vocal Tract Characteristics for Acoustic Discrimination of Pathological Voices
title_full An Investigation of Vocal Tract Characteristics for Acoustic Discrimination of Pathological Voices
title_fullStr An Investigation of Vocal Tract Characteristics for Acoustic Discrimination of Pathological Voices
title_full_unstemmed An Investigation of Vocal Tract Characteristics for Acoustic Discrimination of Pathological Voices
title_short An Investigation of Vocal Tract Characteristics for Acoustic Discrimination of Pathological Voices
title_sort investigation of vocal tract characteristics for acoustic discrimination of pathological voices
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3832970/
https://www.ncbi.nlm.nih.gov/pubmed/24288686
http://dx.doi.org/10.1155/2013/758731
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