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KMID : 1036820190240020518
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Communication Sciences & Disorders
2019 Volume.24 No. 2 p.518 ~ p.524
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A Study on the Aerodynamic Characteristics of Sustained Vowel and Continuous Speech Production of Female Voice Disorder Patients
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Pyo Hwa-Young
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Abstract
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Objectives: Although it is well-known that the characteristics of sustained vowel and continuous speech are very different when evaluating voice problems, very little information has been reported on the aerodynamic aspects of these differences. The present study was performed to compare the aerodynamic characteristics of sustained vowel phonation and continuous speech production.
Methods: Forty-three female patients with voice disorders produced a sustained vowel /a/ and continuous speech through paragraph reading, and their aerodynamic characteristics were analyzed using the ‘Maximum Sustained Phonation’ and ‘Running Speech’ programs of Phonatory Aerodynamic Systems (PAS).
Results: There was no significant correlation between the sustained vowel and continuous speech in the time domain of the aerodynamic measurement results. However, there was a significant, but not high, correlation (r=-.521-.504) between the two speech tasks in the airflow rate and volume measurement results.
Conclusion: We found that the correlation between the two tasks was significant, but not high. Therefore, in evaluating the aerodynamic characteristics of voice disorder patients, it is necessary to include continuous speech as well as a sustained vowel for meaningful and valid results.
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KEYWORD
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Voice disorder patients, Aerodynamic characteristics, Sustained vowel, Continuous speech
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