• 대한음성학회:학술대회논문집
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• 대한음성학회 2007년도 한국음성과학회 공동학술대회 발표논문집
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• pp.295-297
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• 2007

This study suggests a computational model to inquire the roles of phonological information and orthography information in the process of visual word recognition among the courses of language information processing and the representation types of the mental lexicon. As the result of the study, the computational model showed the phonological and orthographic neighborhood effect among language phenomena which are shown in Korean word recognition, and showed proofs which implies that the mental lexicon is represented as phonological information in the process of Korean word recognition.

• 대한음성학회지:말소리
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• 제29_30호
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• pp.19-42
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• 1995

This paper deals with the current phonological theory named the elementary theory Before manipulating this theory with highest depth, we need to discuss the distinctive feature theory which can be estimated as playing a central role in the standard generative trends. En the element-based phonological theory, the followings might act as tile main traits in differentiating it from other theories: the notion of phonological opposition is regarded as privative one, treating the univalent element as an analysing unit in a phonological process instead of distinctive features, and the nile convention in standard theory is replaced by the element. In chapter 2, a brief history of generative theory is to be described with respect to the merits and demerits of the distinctive feature theory. In chapter 3, After dealing with the current tendency and some prominent aspects of each element theory, a couple of problems thought to be confronted by the distinctive feature theory And the analysing method taken from the element-based theory which may be regarded currently as the alternative to the problems mentioned above will be discussed mainly, The government-based theory introduced by KLV(1985, 1988) may be the main target in discussing the current topic.

• 한국산학기술학회논문지
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• 제13권11호
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• pp.5025-5032
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• 2012

본 연구는 다문화아동과 일반아동의 작업기억과 음운인식능력이 집단 간에 차이가 있는지를 알아보고자 하였다. 연구대상은 전라남도 D시에 거주하며 초등학교 1~3학년에 재학중인 다문화 아동 15명과 일반아동 15명이었다. 작업기억을 검사하기 위하여 K-TTFC-2를 실시하였고, 음운인식능력을 검사하기 위하여 아동들의 연령을 고려하여 음소수준의 검사만을 실시하였다. 연구결과는 첫째, 다문화아동과 일반아동의 작업기억의 차이를 비교한 결과 유의미한 차이가 있었다. 둘째, 다문화아동과 일반아동의 음운인식능력 중에서 음소 수준의 차이를 비교한 결과 통계적으로 유의미한 차이가 있었다. 셋째, 다문화 아동과 일반아동의 하위과제별 차이를 비교한 결과 음 짝짓기(어중 종성), 단음절 단어에서 중성 대치하기, 음 전환하기에서 통계적으로 유의미한 차이가 있었다. 따라서 본 연구를 통해 다문화 아동의 음운 및 작업기억 결과를 고려한 치료를 위한 기초자료로 활용할 수 있을 것으로 사료된다.

• 한국음향학회지
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• 제20권2호
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• pp.35-43
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• 2001

음성 인식이나 음성 합성시 필요한 발음열을 수작업으로 작성할 경우 작성자의 음운변화 현상에 대한 전문적 언어지식을 비롯하여 많은 시간과 노력이 요구되며 일관성을 유지하기도 쉽지 않다. 또한 한국어의 음운 변화 현상은 단일 형태소의 내부와 복합어에서 결합된 형태소의 경계점, 여러 형태소가 결합해서 한 어절을 이룰 경우 그 어절 내부의 형태소의 경계점, 여러 어절이 한 어절을 이룰 때 구성 어절의 경계점에서 서로 다른 적용 양상을 보인다. 본 논문에서는 이러한 문제를 해결하기 위해서 형태음운론적 분석에 기반하여 문자열을 자동으로 발음열로 변환하는 발음 생성 시스템을 제안하였다. 이 시스템은 한국어에서 빈번하게 발생하는 음운변화 현상의 분석을 통해 정의된 음소 변동 규칙과 변이음 규칙을 다단계로 적용하여 가능한 모든 발음열을 생성한다. 각 음운변화 규칙을 포함하는 대표적인 언절 리스트를 이용하여 구성된 시스템의 안정성을 검증하였고, 발음사전 구성과 학습용 발음열의 유용성을 인식 실험을 통해 평가하였다. 그 결과 표제어 사이의 음운변화 현상을 반영한 발음사전의 경우 5-6％ 정도 나은 단어 인식률을 얻었으며, 생성된 발음열을 학습에 사용한 경우에서도 향상된 결과를 얻을 수 있었다.

• 말소리와 음성과학
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• 제8권1호
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• pp.53-62
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• 2016

In this study, we examined whether Chinese learners of Korean can correctly produce the phonological process on the lexical and post-lexical level. For this purpose 4 Korean native speakers and 10 advanced and 10 intermediate Chinese learners of Korean participated in the production test. The materials analyzed constituted 10 Korean sentences in which nasalization can be applied on the syllable boundary, word boundary(w-boundary) as well as accentual phrase boundary(AP-boundary). The results show that for Korean speakers, nasalization was applied 100% at all level whereas for Chinese speakers, the rate of application of nasalization is different according to prosodic constituents and Korean proficiency. Nasalization was more frequently applied at the lexical level than the post-lexical level, and it is more frequent in the w-boundary conditions than in the AP-boundary conditions. However, the rate of nasalization in the w-boundary is close to the lexical level. The pronunciation errors were committed either as non application of nasalization or coda obstruent ommission. In the case of non application of nasalization, Chinese learners of Korean produced the target syllables as underling forms, which were not transformed as surface forms. In addition, we can observe the ommission of coda obstruents in 'lenis obstruents+nasal sound' sequences. As a result, nasalization is blocked by this omission.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제5권10호
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• pp.1879-1890
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• 2011

Previous studies of syllable frequency effects have proposed that inhibitory effects due to high first syllable frequency were the products of competitions between activated lexical candidates within a lexical level. However, these studies have primarily used lexical decision tasks to examine the nature of syllable frequency effects. This study investigates whether a syllable frequency effect can arise in semantic categorization tasks and whether phonologically or orthographically defined syllables interact with semantically related variables such as morphological family size. If the syllable frequency effect was created by activations and competitions on a lexical level, it is highly possible that the effect was related to semantic categorization tasks. To test this hypothesis, we conducted two experiments. In Experiment 1, morphological family size and phonological syllable frequency were factorially manipulated. In Experiment 2, morphological family size and orthographic syllable frequency were factorially manipulated. The results demonstrate that morphemes have no relationship with phonological syllables but do with orthographic syllables. This suggests that phonological syllables and orthographic syllables have different roles in the syllable frequency effect on visual word recognition process.

• 대한음성학회지:말소리
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• 제39호
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• pp.53-71
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• 2000

With the 130 patients who were diagnosed as functional articulation disorders with no physical problems, a statistical study was performed to investigate their background information and phonological processes of errors. The results are as follows: (1) Males showed higher prevalence than females, and 5-year-old-patients showed the highest in age. (2) Most patients showed errors of 2~5 phonemes (3) The most frequent errors were found in plosives and alveolar sounds, and the most frequent phonological process of errors in the aspects of manner and place of articulation were stop-assimilations and alveolar assimilations, respectively.

• 대한음성학회:학술대회논문집
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• 대한음성학회 2000년도 3월 학술대회지
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• pp.141-155
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• 2000

With the 130 patients who were diagnosed as functional articulation disorders with no physical problems, statistical study was performed to investigate their background informations and phonological processes of errors. The results are as followings : (1) Males showed higher prevalence than females, and 5-year-patients showed the highest in age. (2) Most patients showed errol.s of 2 - 5 phonemes (3) The most frequent errors were found in plosives and alveoalrs, and the most frequent phonological process of errors in the aspects of manner and place of articulation were stop-assimilations and alveolar assimilations, respectively.

• 대한음성학회:학술대회논문집
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• 대한음성학회 2005년도 춘계 학술대회 발표논문집
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• pp.29-33
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• 2005

This study aims to establish a speech corpus for Korean as a foreign language (L2 Korean Speech Corpus, L2KSC) and to examine the aspects of the foreign learners acquisition of the phonetic and phonological systems in the Korean Language. In the first year of this project, L2KSC will be established through the process of reading list organizing, recording, and slicing, and the second year includes an in-depth study of the aspects of foreign learners Korean acquisition and a contrastive analysis of phonetic and phonological systems. The expectation is that this project will provide significant bases for a variety of fields such as Korean education, academic research, and technological development of phonetic information.

• 말소리와 음성과학
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• 제5권3호
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• pp.73-81
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• 2013

Coda in the word-medial position plays an important role in acquisition of our speech. Accuracy of the coda in the word-medial position is important as a diagnostic indicator since it has a close relationship with degrees of disorder. Coda in the word-medial position only appears in condition of connecting two vowels and the sequence causes diverse phonological processes to happen. The coda in the word-medial position differs in production difficulty by the initial sound in the sequence. Accordingly, this study aims to examine the tendency of producing a coda in the word-medial position with consideration of an optional phonological process in spontaneous speech of three and four year old children. Data was collected from 24 children (four groups by age) without speech and language delay. The results of the study are as follows: 1) Sonorant coda in the word-medial position showed a high production frequency in manner of articulation, and alveolar in place of articulation. When the coda in the word-medial position is connected to an initial sound in the same place of articulation, it revealed a high frequency of production. 2) The coda in word-medial position followed by an initial alveolar stop revealed a high error rate. Error patterns showed regressive assimilation predominantly. 3) The order of difficulty that Children had producing codas in the word-medial position was $/k^{\neg}/$, $/p^{\neg}/$, /m/, /n/, /ŋ/ and /l/. Those results suggest that in targeting coda in the word-medial position for evaluation, we should consider optional phonological process as well as the following initial sound. Further studies would be necessary which codas in the word-medial position will be used for therapeutic purpose.