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[실험음성학연구회] 10월 강독회 안내

김희영   2018-10-15 15:00   197


안녕하세요. 실험음성학연구회 손민정입니다. 

2018년 실험음성학연구회 10월 강독회는 광운대학교 손가연 교수님께서 발표해 주십니다. 금년 가을학기 강독회에서는 아동/유아 언어습득을 주제로 진행하며, 그 첫 번째 강독회를 손가연 교수님 발표로 시작하고자 합니다. 언어습득을 연구 주제로 진행하시거나 관심을 가지신 많은 회원분들이 이번 주 토요일 강독회에 함께 참여하실 수 있기를 바랍니다. 감사합니다.  

◎ 일자: 2018년 10월 20일 토요일

◎ 시간: 10:30-13:00 (이후 원하시는 분들 점심 식사)

 장소: 서울역 인근 (서울로) 대우재단빌딩 7층 세미나 2실  

 가을 학기 회비: 학생 (10,000원), 일반 (20,000원)

 

제목: Interactive development of F0 as an acoustic cue for Korean stop contrast (광운대학교 손가연)

 

발표초록

Korean stop contrasts (lenis, fortis, and aspirated) have been phonetically differentiated by Voice Onset Time (VOT), but with a tonogenetic sound change in progress, the role of fundamental frequency (F0) has been amplified for distinguishing between Korean stop contrasts with the loss of VOT differentiation in young adults’ production. In this regard, the present study aims to show a clear trajectory of how F0 develops and operates for phonetic distinction between Korean laryngeal contrasts in toddler speech. This study uses a quantitative acoustic model to examine the word-initial stop productions of 58 Korean monolingual children aged 20 to 47 months. The production experiment confirmed that VOT is useful for distinguishing fortis stops, but F0 is required for distinguishing between lenis and aspirated stops, and this tendency is significantly related to age. As F0 becomes a determinant acoustic cue for articulatory distinction, the role of F0 in perceptual distinction was investigated through a perceptual identification test with the F0 continuum. Children were provided with selected lenis-aspirated pairs of images in which they would point to one or the other image in response to given synthetic sounds with different F0 values. This allowed us to observe how phonetic boundaries in the F0 dimension for aspirated stops change with age. A comparative analysis between children’s production and perception of F0 indicates that articulatory skills depend on perceived F0 differences depending on the phonemic categories. Additionally, the analysis indicates that VOT is acquired and operates earlier than F0 by toddler speakers, but once F0 is acquired, VOT differentiation diminishes for distinction between lenis and aspirated stops. This trade-off between VOT and F0 would occur around the age of 3 years. These findings suggest that the process of phonemic categorization of Korean laryngeal contrasts with two acoustic cues recapitulates Korean tonogenetic change where tonal contrasts develop in young adults’ speech, and that phonemic processing in perceptual acoustic space is directly linked to phonetic discrimination between the non-fortis stops in production. This study provides experimental evidence for understanding of a developmental trajectory of F0 for native phonological contrasts. 

 


한국음성학회 소식지

회원님들께

 

2018년 한국음성학회 동정을 담은 소식지를 발간하였습니다.

 

내년에도 많은 소식들이 풍성한 학회가 되기를 바랍니다.

 

남은 시간 마무리 잘하시고 2019년 새해 복 많이 받으세요.

 

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