• Proceedings of the Korea Information Processing Society Conference
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• 2007.11a
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• pp.59-62
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• 2007

태어나면서부터 건강에 대한 욕구는 현대 사회에서 많은 부분을 차지하게 된다. 물론 어려서부터의 건강관리가 건강 수명 연장은 물론 가장 기본적인 행복한 삶의 추구까지도 보장되고 있는 실정이다. 이를 위해 본 논문에서는 한의학에서 환자의 질병을 진단하기 위해 사용되고 있는 망진(望診)과 청진(聽診)의 이론적 근거를 바탕으로 소아 감기 질환에 대한 진단 시스템을 개발하고자 한다. 특히 소아감기는 일반적으로 제일 발병률이 높은 질환으로 얼굴 부위에 열을 동반한다는 것과 울음소리가 인체의 모든 조음기관과 연관되어 있다는 한의학적 이론을 기반으로 소아의 생체신호를 분석하여 소아 감기와의 상관성을 분석하고자 한다. 이를 위해 소아 감기 환자에 대한 1차 실험으로 얼굴 영상에서의 열 관련 여부에 대한 색상 분석을 행하였으며 2차 실험으로는 조음기관에 대한 성분음을 추출하는 스펙트럼 분석을 수행하였다. 이를 통해 정상 소아와 감기 질환을 앓고 있는 소아 환자간의 차이점을 추출하고자 한다.

• Korean Journal of Cognitive Science
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• v.19 no.2
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• pp.163-175
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• 2008

Twelve Japanese students living in South Korea have been examined for their perceptual identification of an initial consonant in Korean syllables with or without a white noise. A confusion matrix was then subject to analyses of additive clustering, individual difference scaling, and probability of information transmission, the results of which were also compared to those of South Koreans. The Japanese in the present experiment confused /다/and/타/ most frequently, followed by /가/ and /카/, /자, 차, 짜/, /타/ and /따/, and so on. The results of additive clustering analysis of the Japanese significantly differed from those of the South Koreans. Individual difference scaling revealed dimensions of sonorant, aspiration and coronal. While South Koreans showed binary values on aspiration and tenseness dimensions, the Japanese did continuous values on such dimensions. An information transmission probability analysis revealed that the Japanese participants could not perceive very well such larynx features as tenseness and aspiration compared to the South Korean participants. The former group, however, perceived very well place of articulation features such as labial and coronal. The present results suggest that an approach dealing with structures of base representations is important in understanding the phonological categories of languages.

• 재활복지
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• v.21 no.2
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• pp.217-231
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• 2017

We have to consider two parts of the evaluation and treatment for the patients with head and neck burns. The primary consideration is swallowing function for nutrition supply for them and the next is speech function for efficient communication and aesthetic impression of them. The purpose of this study is to summarize the preliminary questions of Communication Screening Protocols which can help understand comprehensively on swallowing disorder, motor speech disorder and voice disorder of patients with head and neck burns. We divided the evaluation into 4 evaluation areas including 'oral mechanism', 'respiration/voice', 'articulation', and 'swallowing' by referring to overseas studies dealing with various communication disorders caused by burns, and prepared the final questionnaires by conducting the content validity verification by five expert (speech & language pathologist). The range of Content Validity Index was shown relatively appropriate with .50~.84. There was a conflict of opinions in experts whether the items in the areas of respiration/voice and swallowing may be appropriate, whereas there was no different view of the oral mechanism and articulation area. Through the different characteristics of communication difficulties of patients with head and neck burns, we expect it will be modified appropriately according to the patients through evaluation of burn patients by type and severity.

• Therapeutic Science for Rehabilitation
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• v.8 no.2
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• pp.67-78
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• 2019

Objective : The purpose of this study was to investigate the effect of hand tapping on the accuracy and the fluency of speech production in children with speech sound disorder(SSD) and their typically developing peers(TD). Methods : The study subjects were 15 SSD children and 15 TD children aged 4, 5, and 6 years of age. Subjects were asked to give a picture name without hand tapping in the first experimental condition, and with hand tapping in the second experiment condition. Results : The results showed that hand tapping significantly increased disfluency in TD, whereas in SSD. it did not affect the accuracy or fluency of speech production. In addition, TD demonstrated a significant positive correlation with the changes of accuracy and disfluency due to hand tapping, whereas SSD had no correlation. Conclusion : We discussed the possibility that hand tapping could serve as an obstacle distracting attention from SSD and TD, acting as a motor gesture to facilitate phonological processing when facing the difficulty in lexical retrieval for SSD.

• Phonetics and Speech Sciences
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• v.13 no.1
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• pp.65-72
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• 2021

The aim of this study is to prepare basic data that can be used for evaluation and intervention by investigating the characteristics of diphthongs produced by children with speech sound disorders. To confirm this, two groups of 10 children each, with and without speech sound disorders were asked to imitate the meaningless two-syllable 'diphthongs + da'. The slope of F1 and F2, amount of change of formant, and duration of glide were analyzed by Praat (version 6.1.16). As a result, the difference between the two groups was found in the slope of F1 of /ju/. Children with speech sound disorders had smaller changes in formants and shorter duration time values compared to normal children, and there were statistically significant differences. The amount of change in formant in the glide was found in F1 of /ju, jɛ/, F2 of /jɑ, jɛ/, and there were significant differences in the duration of glide in /ju, jɛ/. The results of this study showed that the range of articulation of diphthongs in children with speech sound disorders is relatively smaller than that of normal children, thus the time it takes to articulate was reduced. These results suggest that the range of articulation and acoustic analysis should be further investigated for evaluation and intervention regarding diphthongs of children with speech sound disorders.

• Phonetics and Speech Sciences
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• v.13 no.4
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• pp.1-7
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• 2021

This study aims to enhance English pronunciation education for Korean students by examining the impact of standard Korean and Gyeongsang regional dialect on the articulation of English vowels. Data were obtained through the Korean-Spoken English Corpus (K-SEC). Seven Korean words and ten English mono-syllabic words were uttered by adult, male speakers of standard Korean and Gyeongsang regional dialect, in particular, speakers with little to no experience living abroad were selected. Formant frequencies of the recorded corpus data were measured using spectrograms, provided by the speech analysis program, Praat. The recorded data were analyzed using the articulatory graph for formants. The results show that in comparison with speakers using standard Korean, those using the Gyeongsang regional dialect articulated both Korean and English vowels in the back. Moreover, the contrast between standard Korean and Gyeongsang regional dialect in the pronunciation of Korean vowels (/으/, /어/) affected how the corresponding English vowels (/ə/, /ʊ/) were articulated. Regardless of the use of regional dialect, a general feature of vowel pronunciation among Korean people is that they show more narrow articulatory movements, compared with that of native English speakers. Korean people generally experience difficulties with discriminating tense and lax vowels, whereas native English speakers have clear distinctions in vowel articulation.

• Phonetics and Speech Sciences
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• v.14 no.1
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• pp.21-28
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• 2022

Previous studies have provided important findings on children's speech production development. They have revealed that essentially all aspects of children's speech shift toward adult-like characteristics over time. Nevertheless, few studies have examined the perceptual aspects of children's speech tokens, as perceived by naive adult listeners. To fill the gap between children's production and adults' perception, we conducted cross-sectional perceptual studies of monosyllabic words produced by children aged two to six years. Monosyllabic words in the consonant-vowel-consonant form were extracted from children's speech samples and presented aurally to five listener groups (20 listeners in total). Generally, the agreement rate between children's production of target words and adult listeners' responses increases with age. The perceptual responses to tokens produced by two-year old children induced the largest discrepancies and the responses to words produced by six years olds agreed the most. Further analyses were conducted to identify the sources of disagreement, including the types of segments and syllable structure. This study makes an important contribution to our understanding of the development and perception of children's speech across age groups.

• Proceedings of the IEEK Conference
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• 2000.09a
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• pp.167-170
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• 2000

일반적인 한국어 대용량 어휘인식에 사용되는 triphone 모델은 한국어의 특성을 잘 표현한다는 장점이 있으나 인식시간이 길어지게 된다. 이러한 triphone 모델의 단점을 극복하기 위해 음절단위 HMM 모델을 사용하는 방법이 있는데 이 모델은 인식시간을 줄일 수 있으나 triphone 모델에 비해서 인식률이 낮다. 본 논문에서는 음성 인식시간을 단축시키고 조음현상을 고려하기 위하여 초성과 종성 자음은 각각의 biphones으로 나타내고 중성 모음은 1개의 monophone으로 나타내는 모델을 제안하였다. PBW445 음성 데이터베이스에 대한 실험결과, 제안한 인식모델이 triphone 모델에 가까운 인식률을 나타내었으며, 인식시간을 크게 단축하였다.

• Journal of Biomedical Engineering Research
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• v.14 no.1
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• pp.1-8
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• 1993

In this study, the extractions of formants and articulatory motion trajectories for Korean complex vowels are performed by using the RLSL adaptive linear prediction filter. This enables us to extract accurate spectrum in transition of speech signal. This study shows that the RLSL algorithm is superior to the Levinson algorithm, specially in transition part of speech.

• Proceedings of the Korea Contents Association Conference
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• 2015.05a
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• pp.93-94
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• 2015

본 연구는 보컬을 위한 영어 딕션법을 이중모음 [aɪ], [eɪ]. [ɔɪ], [aʊ], [oʊ]를 중심으로 연구했다. 먼저 영어음성학을 기초로 소리 내는 법을 정리하고 그다음으로 노래할 때 필요한 딕션법을 정리했는데, 이 항목에서는 이중모음을 노랫말로 표현할 때 조음기관의 위치를 어떻게 설정할 것인지를 중점적으로 다뤘다. 각 항목의 예시로 영어노래 악보들을 첨부했으며 악보에 표기된 가사들은 원어, 국제음성기호(IPA), 한글표기 세 가지로 분석하여 노래할 때 참고할 수 있도록 만들었다.