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http://dx.doi.org/10.9717/kmms.2019.22.2.157

Influence of Nasometer Structure on Nasalance for Speech Therapy  

Woo, Seong Tak (Gyeongbuk Institute of IT Convergence Industry Technology)
Park, Y.B. (Gyeongbuk Institute of IT Convergence Industry Technology)
Kim, J.Y. (Gyeongbuk Institute of IT Convergence Industry Technology)
Oh, D.H. (Dept. of Rehabilitation Science, Graduate School, Daegu University)
Ha, J.W. (Dept. of Speech Pathology, Daegu University)
Na, S.D. (Dept. of Biomedical Eng., Kyungpook National Univeristy Hospital)
Kim, M.N. (Dept. of Biomedical Eng., School of Medicine, Kyungpook National University)
Publication Information
Journal of Korea Multimedia Society / v.22, no.2, 2019 , pp. 157-166 More about this Journal
Abstract
With the development of medical technology, interest in rehabilitation devices is increasing and various devices are being studied. In particular, devices for speech disorders such as hearing impairment and cleft palate are attracting attention. In general, the nasometer is used for patients with flaccid dysarthria and velopharyngeal incompetence(VPI). However, in the case of the conventional separator type nasometer, that has an acoustic feedback problem between the oral and nasal sounds. In recent, the mask type nasometer has been developed which is insensitive to acoustic feedback. But, still not popularized. In this paper, the nasometer characteristics of the conventional separation type and mask type are analyzed. Also, We were obtained clinical acoustic data from the 6 subjects and examined the significant differences in the structure of the separation type and mask type nasometer. Through experiments, it was confirmed that the measurement was about 3~15% higher in the mask type nasometer than the conventional nasometer having a separator type. Also, We was considered the necessity of nasometer signal processing for acoustic feedback reduction and nasalance calculation optimization.
Keywords
Nasometer; Nasalance; Microphone; Acoustic Feedback; Speech Therapy;
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Times Cited By KSCI : 1  (Citation Analysis)
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