차원 축소 알고리즘을 이용한 한국어 자음간 거리 매핑 연구
A Study of mapping distance among Korean consonants using dimension reduction algorithm
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초록
There have been increasing needs to understand speech signals to reveal auditory processing mechanism. We investigated an optimal dimension reduction algorithm and features for reflecting distance between Korean consonants. First, we reduced features of consonant articulatory phonetics from 15 to 5-6 using three dimension reduction algorithms. This revealed 90% of the distance distribution of Korean consonants. Next, we applied the Isomap method to show the most similar acoustic features of speech banana. Results showed a useful mapping of consonant articulatory distances. For example, we found that consonant /ㅂ(p)/ and /ㄷ(t)/ share 13 out of 15 features of articulatory phonetics, with only the features of bilabial and coronal being different, suggesting that they are the most difficult to discriminate from each other and reflected in the shortest distance between these two consonants in the Isomap method. However, the Isomap method was not effective in distinguishing the acoustic features of fortis from aspirated with limited numbers of acoustic features which are using for English consonants. This study shows that the use of reduction algorithms and the Isomap method can be effective in consonant mapping of articulatory features. These findings suggest that they are useful tools in phonetics research when combined with acoustic phonetics data and real voice data.
Abstract
There have been increasing needs to understand speech signals to reveal auditory processing mechanism. We investigated an optimal dimension reduction algorithm and features for reflecting distance between Korean consonants. First, we reduced features of consonant articulatory phonetics from 15 to 5-6 using three dimension reduction algorithms. This revealed 90% of the distance distribution of Korean consonants. Next, we applied the Isomap method to show the most similar acoustic features of speech banana. Results showed a useful mapping of consonant articulatory distances. For example, we found that consonant /ㅂ(p)/ and /ㄷ(t)/ share 13 out of 15 features of articulatory phonetics, with only the features of bilabial and coronal being different, suggesting that they are the most difficult to discriminate from each other and reflected in the shortest distance between these two consonants in the Isomap method. However, the Isomap method was not effective in distinguishing the acoustic features of fortis from aspirated with limited numbers of acoustic features which are using for English consonants. This study shows that the use of reduction algorithms and the Isomap method can be effective in consonant mapping of articulatory features. These findings suggest that they are useful tools in phonetics research when combined with acoustic phonetics data and real voice data.
참고문헌 (18)
- 배문정, "한국어 자음의 지각 구조", 한국심리학회지: 인지 및 생물, 14(4), pp.10~408 (2002), 한국인지및생물심리학회
- 신지영, "우리말 소리의 체계" (2003), 한국문화사
- 엄정희, "정상 말소리의 발달(II) : 3, 4, 5세 아동, In 아동의 조음장애 치료" (1994), 군자출판사
- 이호영, "국어음성학" (1996), 태학사
- Belkin, M., "Laplacian Eigenmaps for dimensionality reduction and data representation", Neural Computation, 15, pp.1373~1396 (2003)
- Choi, H., "Kernel Isomap on noisy manifold. in Proc", IEEE International Conference, pp.208~213 (2005), Development and Learning (ICDL)
- 최승진, "Robust kernel Isomap", PATTERN RECOGNITION, 40(3), pp.853~862, PERGAMON-ELSEVIER SCIENCE LTD
- Cole, R., "Spoken letter recognition", Proceedings of the workshop on Speech and Natural Language, pp.385~390 (1990)
- Clark, G. M., "Cochlear implants: fundamentals and applications" (2003), Springer
- Cox, T. F., "Multidimensional Scaling" (2001), Chapman and Hall
- Dorman, M., "Speech perception by adults, In Cochlear Implants, Audiological Foundations", pp.317~329 (1993), Singular Publishing Group
- Kim, M. J., "Phonetic and Phonological Development of Word-initial Korean Obstruents in Young Korean Children", 박사, pp.2008
- Miller, G. A., "An analysis of perceptual confusions among some English consonants", Journal of the Acoustical Society of America, 27(2), pp.338~352 (1955)
- Preece, J., "Consonant confusions by users of three cochlear implant devices", Seminars in Hearing, 13(3), pp.226~238 (1992)
- Roweis, S. T., "Nonlinear dimensionality reduction by locally linear embedding", Science, 290, pp.2323~2326 (2000)
- Tenenbaum, J. B., "A global geometric framework for nonlinear dimensionality reduction", Science, 290, pp.2319~2323 (2000)
- Tyler, R., "Consonant recognition by some of the better cochlear implant patients", Journal of the Acoustical Society of America, 92, pp.3068~3077 (1992)