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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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This study acoustically examines the quality of fricatives produced by ten dysarthric speakers with cerebral palsy. Previous similar studies tend to focus only on sibilants, but to obtain a better understanding of how dysarthria affects fricatives we selected a range of samples with different places of articulation and voicing. The Universal Access (UA) Speech database was used to select thirteen words beginning with one of the English fricatives (/f/, /v/, /s/, /z/, /ʃ/, /ð/). The following four measurements were taken for both dysarthric and healthy speakers: phoneme duration, mean spectral peak, variance and skewness. Results show that even speakers with mild dysarthria have significantly longer fricatives and a lower mean spectral peak than healthy speakers. Furthermore, mean spectral peak and variance showed significant group effects for both healthy and dysarthric speakers. Mean spectral peak and variance was also useful for discriminating several places of articulation for both groups. Lastly, spectral measurements displayed important group differences when taking severity into account. These findings show that in general there is a degradation in the production of fricatives for dysarthric speakers, but difference will depend on the severity of dysarthria along with the type of measurement taken.
목차
Abstract
1. Introduction
2. Methods
3. Results: All Speakers
4. Results: Intelligibility Consideration
5. Discussion and Conclusion
References
참고문헌 (15)
참고문헌 신청
Antolík, T. / 2013 / Consonant distortions in dysarthria due to Parkinson's disease, amyotrophic lateral sclerosis and cerebellar ataxia / Proceedings of the Annual Conference of the International Speech Communication Association, Interspeech :2152~2156
Boersma, P. / Praat: Doing phonetics by computer (version 6.0.52) [Computer Program]
Chen, H. / 2001 / An acoustical study of the fricative /s/ in the speech of individuals with dysarthria / Journal of Speech, Language, and Hearing Research 44(6):1300~1314
Flint, A. J. / 1992 / Acoustic analysis in the differentiation of Parkinson's disease and major depression / Journal of Psycholinguistic Research 21(5):383~389
Jongman, A. / 2000 / Acoustic characteristics of English fricatives / The Journal of the Acoustical Society of America 108(3):1252~1263
Boersma, P. / Praat: Doing phonetics by computer (version 6.0.52) [Computer Program]
Chen, H. / 2001 / An acoustical study of the fricative /s/ in the speech of individuals with dysarthria / Journal of Speech, Language, and Hearing Research 44(6):1300~1314
Flint, A. J. / 1992 / Acoustic analysis in the differentiation of Parkinson's disease and major depression / Journal of Psycholinguistic Research 21(5):383~389
Jongman, A. / 2000 / Acoustic characteristics of English fricatives / The Journal of the Acoustical Society of America 108(3):1252~1263
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UCI(KEPA) : I410-ECN-0101-2019-700-001237823