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ERIC Number: EJ799398
Record Type: Journal
Publication Date: 2008-Jun
Pages: 14
Abstractor: As Provided
Reference Count: 24
ISSN: ISSN-0269-9206
Instrumental Dimensioning of Normal and Pathological Phonation Using Acoustic Measurements
Putzer, Manfred; Barry, William J.
Clinical Linguistics & Phonetics, v22 n6 p407-420 Jun 2008
The present study deals with the dimensions of normal and pathological phonation. Separation of normal voices from pathological voices is tested under different aspects. Using a new parametrization of voice-quality properties in the acoustic signal, the vowel productions of 534 speakers (267 M, 267 F) without any reported voice pathology and the productions of 534 gender-matched pathological speakers were considered. In a first step, a gender-specific separation of the two groups is supported by a number of significantly different parameter means. In a second step, a clustering technique differentiates three subgroups within each group and gender on the basis of the acoustic parameters. Further, a statistical examination of the correct assignment in the database (DB-classification) as "normal" or "pathological" shows that the two groups overlap to some extent. The overlap of speaker assignment indicates a phonation continuum through the multidimensional space extending from normal to pathological voices. The validity of a categorical distinction of normal and pathological phonation in the sense of an individual or group-orientated labelling of voice quality as "normal" or "pathological", respectively, is discussed. (Contains 6 figures and 8 tables.)
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A