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한국어 모음의 지각적 차원 : 지각과 산출간의 연동 Alink between Perception and Production
최양규 한국음성과학회 2001 음성과학 Vol.8 No.2
The acoustic quality of a vowel is known to he mostly determined by the frequencies of the first formant(F1) and the second formant(F2). The perceptual(or psychological) dimensions of vowel perception were examined in this study. Also the relationships among perceptual dimensions, acoustical dimensions(F1 F2), and articulatory gestures of vowel were discussed. Using mufti-dimensionall scaling(MI S) technique, the experiment was performed in order to identify the perceptual dimensions of the perception of Korean vowel. In the experiment $ Seoul standard speakers performed the similarity rating task of 10 synthesized Korean vowels. Two-dimensional MISS solution based an the similarity rating scores was obtained. The results showed that two perceptual dimensions, Dl and D were coiTelated strongly with F and Fl (r = -,895 and , 78 respectively), and were so interpreted as 'vowel advancement' and 'vowel height' respectively. The relationship between the perceptual dimensions of vowel and the articulatory positions of tongue suggested that perception may be directly linked to production. Further research problems were discussed in the final section.
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최양규,신현정,권오식 한국음성과학회 1997 음성과학 Vol.1 No.-
Acoustically a naturally-spoken vowel is composed of five formants. However, the acoustic quality of a vowel is known to be mostly determined by F_1 and F_2. The main purpose of this study was to examine how synthesized vowels with F_1 and F_2 are perceived by Korean native speakers. In addion, we are interested in finding whether the synthesized vowels are perceived differently by standard Korean speakers and Kyungnam regional dialect speakers. In the experiment 9 Seoul standard Korean speakers and 9 Kyungnam dialect speakers heard 536 vowels synthesized in vowel space with F_1 by F_2 and categorized them into one of 10 Korean vowels. The resultant vowel map showed that each Korean vowel occupies an unique area in the two-dimensional vowel space of F_1 by F_2, and confirmed that F_1 and F_2 play important roles in the perception of vowels. The results also showed that the Seoul speakers and the Kyungnam speakers perceive the synthesized vowels differently. For example, /e/ versus /ε/ contrast, /y/, and /Ø/ are perceived differently by the Seoul speakers, whereas they were perceptually confused by the Kyungnam speakers. These results might be due to the different vowel systems of the standard Korean and the Kyungnam regional dialect. While the latter uses a six-vowel system which has no /e/ vs /ε/ contrast, /??/ vs /??/ contrast, /y/, and /Ø/, the former recognizes these as different vowels. This result suggests that the vowel system of differing dialect restricts the perception of the Korean vowels. Unexpectedly /??/ does not occupy and area in the vowel apace. This result suggests that /??/ cannot be synthesized without F_3.
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애니메이션 효과가 정서 그림 상징의 식별에 미치는 영향
최양규,송기범 한국언어치료학회 2010 언어치료연구 Vol.19 No.2
The purpose of this study was to examine the effect of animation on the identification of emotional graphic symbols. For such a purpose, two experiments were performed for evaluating and comparing the reaction time and accuracy of identification for two types of symbols: animated and static graphic symbols. 34 adults and 30 children participated in Experiment 1 and 2, respectively. As experimental materials, the four types of emotional symbols (happy, angery, sad, and afraid) were selected from PCS, Picsyms, and Makaton symbols. The animated symbols were transformed versions of the emotional graphic symbols. The reaction times and accuracy on identification for animated symbols were compared with those for static graphic symbols. The findings of this study showed that the reaction time and accuracy of animated symbols was significantly shorter than those of static graphic symbols for both adults and children in the two experiments. The results suggested that an AAC system using animated symbols is more effective. The guidelines for effective AAC system design were discussed in the final section. 이 연구는 애니메이션 상징과 그림 상징 간에 식별 반응속도와 오류율을 각각 비교하여 상징의 애니메이션 효과를 규명하고자 하였다. 실험 1에서 34명의 성인을, 실험 2에서는 30명의 아동을 각각 대상으로 그림 상징의 애니메이션 효과를 평가하였다. 표상적 상징인 PCS, Picsyms, Makaton 그림 상징에서 정서(기쁨, 분노, 슬픔, 공포)를 나타내는 16개의 그림 상징들을 선정하고, 이 그림 상징들을 바탕으로 제작한 16개의 애니메이션 상징을 의사소통판에서 목표 상징으로 식별하여 선택하는 데에 소요되는 반응시간과 오류율을 그림 상징과 비교하였다. 두 실험을 통한 연구 결과, 오류율에서는 애니메이션 유무에 따른 유의한 차이가 나타나지는 않았으나, 성인과 아동 모두에서 애니메이션 상징에 대한 선택 반응시간이 그림 상징보다 유의하게 짧았다. 이 결과는 의사소통 속도 증진을 위해서 애니메이션 상징이 전통적인 그림 상징에 대한 효과적인 대안이 될 수 있음을 시사하고 있다. 이러한 시사점을 바탕으로 효과적인 보완대체의사소통(AAC) 시스템 구현을 위한 지침이 논의되었다.
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