DOI QR코드

DOI QR Code

뇌성마비 마비말장애 성인의 파찰음 실현 양상 분석

Acoustic analysis of Korean affricates produced by dysarthric speakers with cerebral palsy

  • Mun, Jihyun (Department of Linguistics, Seoul Nationa University) ;
  • Kim, Sunhee (Department of French Language Education, Seoul National University) ;
  • Chung, Minhwa (Department of Linguistics, Seoul Nationa University)
  • 투고 : 2021.05.31
  • 심사 : 2021.06.12
  • 발행 : 2021.06.30

초록

본 연구는 경직형 경도-중등도 뇌성마비 마비말장애 성인이 산출한 한국어 파찰음의 음향학적인 특징을 분석한다. 한국어의 마찰음과 파찰음은 조음오류가 빈번하게 발생하는 자음인데, 기존 연구들은 마찰음에만 집중했다. 따라서 본 연구에서는 마비말장애 화자가 산출한 파찰음을 음향학적으로 분석하고자 한다. QoLT_SPEECH_2014 데이터베이스 내에서 파찰음 /tɕ, tɕh, ͈tɕ/이 어두 초성 및 어중 초성에 위치하는 단어를 선정하여 경도-중등도 경직형 장애 남성 화자 6명과 비장애 남성 화자 5명의 발화 데이터를 분석에 사용하였다. 한국어의 파찰음의 특성을 고려하여 파찰음의 음향학적 특징을 나타내는 매개변수를 선정하여 분석을 시행하였다: 마찰구간의 길이, 묵음 구간의 길이, 무게중심, 분산, 왜도, 첨도, 중심적률. 분석 결과는 다음과 같다: 1) 어중 초성 파찰음에서 마비말장애인이 유의하게 긴 마찰구간의 길이를 보였다, 2) 마비말장애인이 유의하게 긴 묵음 구간의 길이를 보였다, 3) 무게중심의 경우 두 집단 간의 유의한 차이가 존재하지 않았다, 4) 마비말장애인이 유의하게 큰 왜도 값을 보였다, 5) 마비말장애인이 유의하게 큰 중심적률 값을 보였다. 본 연구는 마비말장애인이 산출한 파찰음의 특성을 분석하고, 비장애인이 산출한 파찰음과의 차이를 밝혔다.

This study aims to analyze the acoustic characteristics of Korean affricates produced by dysarthric speakers with cerebral palsy. Korean fricatives and affricates are the consonants that are prone to errors in dysarthric speech, but previous studies have focused only on fricatives. For this study, three affricates /tɕ, tɕh, ͈tɕ/ appearing at word initial and intervocalic positions produced by six mild-moderate male speakers of spastic dysarthria are selected from a QOLT database constructed in 2014. The parameters representing the acoustic characteristics of Korean affricates were extracted by using Praat: frication duration, closure duration, center of gravity, variance, skewness, kurtosis, and central moment. The results are as follows: 1) frication duration of the intervocalic affricates produced by dysarthric speakers was significantly longer than that of the non-disordered speakers; 2) the closure duration of dysarthric speakers was significantly longer; 3) in the case of the center of gravity, there was no significant difference between the two groups; 4) the skewness of the dysarthric speakers was significantly larger; and 5) the central moment of dysarthric speakers was significantly larger. This study investigated the characteristics of the affricates produced by dysarthric speakers and differences with non-disordered speakers.

키워드

과제정보

본 연구는 문화체육관광부 및 한국콘텐츠진흥원의 연구개발지원사업으로 수행되었음(과제번호: R2019080018).

참고문헌

  1. Ahn, M. (2018). Types of cerebral palsy [Web log post]. Retrieved from https://hworld.org/385
  2. Byeon, H. W. (2010). Comparing the acoustic character of diphthong production between flaccid dysarthria and spastic dysarthria. Communication Sciences & Disorders, 15(1), 66-78.
  3. Byrne, M. C. (1959). Speech and language development of athetoid and spastic children. Journal of Speech and Hearing Disorders, 24(3), 231-240. https://doi.org/10.1044/jshd.2403.231
  4. Chang, C. B. (2008). The acoustics of Korean fricatives revisited. Harvard Studies in Korean Linguistics, 12, 137-150.
  5. Choi, Y. (2019). Acoustics properties of Korean affricative produced by Russian speakers. Korean Language Research, (51), 215-252. https://doi.org/10.16876/KLRC.2019..51.215
  6. Dworzynski, K., & Howell, P. (2004). Predicting stuttering from phonetic complexity in German. Journal of fluency disorders, 29(2), 149-173. https://doi.org/10.1016/j.jfludis.2004.03.001
  7. Gordon, M., Barthmaier, P., & Sands, K. (2002). A cross-linguistic acoustic study of voiceless fricatives. Journal of the International Phonetic Association, 32(2), 141-174. https://doi.org/10.1017/S0025100302001020
  8. Hernandez, A., Lee, H., & Chung, M. (2019). Acoustic analysis of fricatives in dysarthric speakers with cerebral palsy. Phonetics and Speech Sciences, 11(3), 23-29. https://doi.org/10.13064/KSSS.2019.11.3.023
  9. Jannedy, S., & Weirich, M. (2017). Spectral moments vs discrete cosine transformation coefficients: Evaluation of acoustic measures distinguishing two merging German fricatives. The Journal of the Acoustical Society of America, 142(1), 395-405. https://doi.org/10.1121/1.4991347
  10. Jeng, J. Y. (2000). Intelligibility and acoustic characteristics of the dysarthria in Mandarin speakers with cerebral palsy (Doctoral dissertation). The University of Wisconsin-Madison, Madison, WI.
  11. Jongman, A., Wayland, R., & Wong, S. (2000). Acoustic characteristics of English fricatives. The Journal of the Acoustical Society of America, 108(3), 1252-1263. https://doi.org/10.1121/1.1288413
  12. Kim, H. (2006). Acoustic analysis of plosive generation in patients with dysarthria (Master's thesis). Yonsei University, Seoul, Korea.
  13. Kim, H., Martin, K., Hasegawa-Johnson, M., & Perlman, A. (2010). Frequency of consonant articulation errors in dysarthric speech. Clinical Linguistics & Phonetics, 24(10), 759-770. https://doi.org/10.3109/02699206.2010.497238
  14. Kim, S., & Kim, H. (2013). Acoustic characteristics of Korean alveolar sibilant 's', 's' according to phonetic contexts of children with cerebral palsy. Phonetics and Speech Sciences, 5(2), 3-10. https://doi.org/10.13064/KSSS.2013.5.2.003
  15. Kong, E. J., Kang, S., & Seo, M. (2014). Gender difference in the affricate productions of young Seoul Korean speakers. The Journal of the Acoustical Society of America, 136(4), EL329-EL335. https://doi.org/10.1121/1.4896420
  16. Lee, E. J., Han, J. S., & Sim, H. S. (2004). The effects of the phonetic complexity on the disfluencies and the articulation errors of people who stutter. Communication Sciences & Disorders, 9(3), 139-156.
  17. Lee, G. (2017). Examination of aspiration in Korean fricatives and affricates. Phonetics and Speech Sciences, 9(2), 31-38. https://doi.org/10.13064/KSSS.2017.9.2.031
  18. Lee, J. S., Lee, J. Y., & Kim, S. H. (2020). Effect of articulation abilities on the articulator strength training by IOPI of spasticity dysarthric speech. Therapeutic Science for Rehabilitation, 9(1), 91-99. https://doi.org/10.22683/TSNR.2020.9.1.091
  19. Lee, Y., Sung, J. E., & Sim, H. S. (2013). Consonant confusions matrices in adults with dysarthria associated with cerebral palsy. Phonetics and Speech Sciences, 5(1), 47-54. https://doi.org/10.13064/KSSS.2013.5.1.047
  20. Li, S., & Gu, W. (2015, September). Acoustic analysis of Mandarin affricates. Proceedings of the 16th Annual Conference of the International Speech Communication Association. Dresden, Germany.
  21. Liu, C., Chen, L. M., Lin, Y. C., Cheng, C. F., & Chang, H. C. (2016, October). Speech intelligibility and the production of fricative and affricate among Mandarin-speaking children with cerebral palsy. Proceedings of the 28th Conference on Computational Linguistics and Speech Processing (ROCLING 2016) (pp. 153-163). Tainan, Taiwan.
  22. Liu, H. M., Tseng, C. H., & Tsao, F. M. (2000). Perceptual and acoustic analysis of speech intelligibility in Mandarin-speaking young adults with cerebral palsy. Clinical Linguistics & Phonetics, 14(6), 447-464. https://doi.org/10.1080/026992000415877
  23. Nam, J. H., & Yi, B. W. (2010). Acoustic properties of fricatives produced by children with functional articulation disorder. Phonetics and Speech Sciences, 2(4), 93-100.
  24. Park, H. J., Shin, H. J., Jeong, O. R., & Seok, D. I. (2006). An acoustical and perceptual study of /s/ in the speech of dysarthric speakers. Journal of Special Education & Rehabilitation Science, 45(1), 187-202.
  25. Platt, L. J., Andrews, G., & Howie, P. M. (1980). Dysarthria of adult cerebral palsy: II. Phonemic analysis of articulation errors. Journal of Speech, Language, and Hearing Research, 23(1), 41-55. https://doi.org/10.1044/jshr.2301.41
  26. Shin, G. E., & Ha, J. W. (2015). The effects of phonetic complexity on the disfluency and articulation errors of children with speech sound disorders. Journal of Speech-Language & Hearing Disorders, 24(1), 91-102. https://doi.org/10.15724/jslhd.2015.24.1.007
  27. Song, H. N., Lee, Y., Sim, H. S., & Sung, J. E. (2013). Effects of phonetic complexity and articulatory severity on percentage of correct consonant and speech intelligibility in adults with dysarthria. Phonetics and Speech Sciences, 5(1), 39-46. https://doi.org/10.13064/KSSS.2013.5.1.039
  28. Tanner, K., Roy, N., Ash, A., & Buder, E. H. (2005). Spectral moments of the long-term average spectrum: Sensitive indices of voice change after therapy? Journal of Voice, 19(2), 211-222. https://doi.org/10.1016/j.jvoice.2004.02.005
  29. Whitehill, T. L., & Ciocca, V. (2000). Speech errors in Cantonese speaking adults with cerebral palsy. Clinical Linguistics & Phonetics, 14(2), 111-130. https://doi.org/10.1080/026992000298869
  30. Yang, M., Choi, Y., Kim, E. Y., & Yoo, H. J. (2018). Acoustic-phonetic characteristics of fricatives distortion in functional articulation disorders. Phonetics and Speech Sciences, 10(4), 127-134. https://doi.org/10.13064/KSSS.2018.10.4.127
  31. You, Y. S., Jang, S. J., Bak, S. J., & Choi, Y. L. (2010). Acoustic analysis of the differences of fricatives and affricates between normal children and cleft palate children. The Journal of the Korea Contents Association, 10(5), 285-295. https://doi.org/10.5392/JKCA.2010.10.5.285
  32. 박지현(2009). 경직형과 이완형 마비말장애의 조음음운오류: 읽기 과제에서. 연세대학교 석사학위논문.