An Investigation of Vocal Tract Characteristics for Acoustic Discrimination of Pathological Voices
Joint Authors
Lee, Jung-Won
Kang, Hong-Goo
Choi, Jeung-Yoon
Son, Young-Ik
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-10-31
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
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.
American Psychological Association (APA)
Lee, Jung-Won& Kang, Hong-Goo& Choi, Jeung-Yoon& Son, Young-Ik. 2013. An Investigation of Vocal Tract Characteristics for Acoustic Discrimination of Pathological Voices. BioMed Research International،Vol. 2013, no. 2013, pp.1-11.
https://search.emarefa.net/detail/BIM-1005057
Modern Language Association (MLA)
Lee, Jung-Won…[et al.]. An Investigation of Vocal Tract Characteristics for Acoustic Discrimination of Pathological Voices. BioMed Research International No. 2013 (2013), pp.1-11.
https://search.emarefa.net/detail/BIM-1005057
American Medical Association (AMA)
Lee, Jung-Won& Kang, Hong-Goo& Choi, Jeung-Yoon& Son, Young-Ik. An Investigation of Vocal Tract Characteristics for Acoustic Discrimination of Pathological Voices. BioMed Research International. 2013. Vol. 2013, no. 2013, pp.1-11.
https://search.emarefa.net/detail/BIM-1005057
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1005057