• 한국음향학회:학술대회논문집
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• 한국음향학회 1994년도 제11회 음성통신 및 신호처리 워크샵 논문집 (SCAS 11권 1호)
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• pp.395-398
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• 1994

In this paper the word recognition using sub-model based Hidden Markov Model was studied. Phoneme models were composed of 61 phonemes in therms of Korean language pronunciation characteristic. Using this, word model was maded by serial concatenation. But, in case of this phoneme concatenation, the second and the third phoneme of syllable are overlapped in distribution at the same time. So considering this, the method that combines the second and the third phoneme to one model was proposed. And to prevent the increase in number of model, similar phonemes were combined to one, and finially, 57 models were created. In experiment proper model structure of sub-model was searched for, and recognition results were compared. So similar recognition results were maded, and overall recognition rates were increased in case of using parameter tying method.

• 한국정보과학회 언어공학연구회:학술대회논문집(한글 및 한국어 정보처리)
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• 한국정보과학회언어공학연구회 1995년도 제7회 한글 및 한국어 정보처리 학술대회
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• pp.228-232
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• 1995

음절과 글자의 내부구조에 대한 언어학적 심리학적 논의들을 개관하였다. 영어의 음절구조에 대한 연구들은 초두자음/각운 구조를 지지하고 있다. 한편 한국어의 음절과 글자의 내부구조에 대한 최근의 연구는 영어에서 얻어진 결과들과 다른 결과를 얻고 있다. 자모대체 과제를 사용한 이 연구에 의하면, 글자유형에 관계없이 종성자모의 대체시간이 초성자모의 대체시간보다 짧았다. 이러한 결과는 음절에 대응하는 글자의 내부구조로서 초중성자모/종성자모 구조를 지지하고 있다. 선행연구 결과들을 바탕으로 음운단위와 표기단위의 상동성, 그리고 언어특유적 음절구조의 가능성에 대해서 논의하였다.

• 한국영어학회지:영어학
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• 제1권1호
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• pp.19-38
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• 2001

The question of how / ... VCV .../ sequences should be syllabified is a much discussed, yet unresolved, issue in English phonology. While most researchers recognize an over-all universal tendency towards open syllables, there seem to be at least two different views as regards the analysis of / ... VCV .../ when the second vowel is unstressed: ambisyllabicity (e.g., Kahn 1976) and resyllabification (e.g., Borowsky 1986). Basically, we adopt the latter view and will present further evidence in its favor. This does not exclude low-level “phonetic” ambisyllabification, however. Following Nespor and Vogel (1986), we also assume that the domain of syllabification or resyllabification is the phonological word. With the new conception of the syllable structure of English, we attempt a reanalysis of Aitkin's Law as well as fe-tensing in New York City and Philadelphia.

• 한국언어정보학회:학술대회논문집
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• 한국언어정보학회 2002년도 Language, Information, and Computation Proceedings of The 16th Pacific Asia Conference
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• pp.135-146
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• 2002

The so-called overapplication of Coda Neutralization in Korean, the occurrence of a neutralized consonant in a non-neutralizing environment, is often considered as evidence for serial derivation. In this paper I propose that the neutralization effect at surface is not a result of a phonological process at an intermediate level in serial derivation, but due to a constraint requiring the integrity of the morphological constituent: EDGE-INTEGRITY. It is argued that this is not reducible to an alignment constraint, but a genuine faithfulness constraint on the edge of a morphological constituent. The putative opacity related with the coda neutralization is shown to be an epiphenomenon arising from the ambisyllabic representation of a consonant at a morphological juncture, satisfying both EDGE-INTEGRITY arid Syllabic Conditions. Consonant Copy in the Jeju dialect provides further evidence for EDGE-INTEGRITY, the Only difference being that the conflict between Syllabic Conditions and EDGE-INTEGRITY is resolved by insertion of a copied consonant.

• 대한음성학회지:말소리
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• 제57호
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• pp.43-58
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• 2006

This study aims to investigate whether Chinese learning Korean and Korean native speakers show any difference in length and formant structures of the Korean liquid 'ㄹ' in the environments of v_v and v_# through the acoustic analysis of 10 Chinese learners' and 10 Koreans' utterances. The acoustic analysis of L2KSC DB shows that the length and formant structures of 'ㄹ' produced by Chinese learners are significantly different from the ones by Koreans. I explain these differences by contrasting the liquids and syllable structure constraints of the two languages, Chinese and Korean. In addition, I relate the F1 and F2's values to the tongue's movement when making a constriction, and conclude that Chinese learners pronounce the 'ㄹ' in the v_# environment with the tongue lower and backer than Koreans do.

• 대한전자공학회논문지
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• 제27권10호
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• pp.138-145
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• 1990

본 논문에서는 합성단위를 반음절로 하여 적은 데이터 베이스를 차지하면서도, 합성음의 자연스러움을 향상 시키기 위한 한국어 규칙 합성법을 제시한다. 반음절 음성신호를 분석하기 위해 12차 선형 예측법을 사용하며, 합성음의 자연성과 명료성을 위해 음절간 접속 규칙, 모음부의 연결규칙을 개발한다. 또한 신경망 모델을 이용한 음운 변동 규칙과 운율규칙을 적용한다.

• 대한음성학회지:말소리
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• 제53호
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• pp.37-60
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• 2005

A Study of N-Insertion Preferences in KoreanKyung-A Kook, Ju-Won Kim, Ho-Young LeeSince n-insertion is not an obligatory process in Korean, it is necessary to investigate what factors influence n-insertion preferences and whether n-insertion preferences have been changed over time. To find answers to these questions, an n-insertion preference test using a questionnaire was conducted. 183 words were selected for this test and 167 subjects participated in the test. The results of this test show that the n-insertion preferences were influenced by the speakers' age, the number and structure of the syllable, word class, phonetic environments, and familiarity. It is suggested that the results of this test should be incorporated into the Principles of Standard Pronunciation and in the Grand Dictionary of Standard Korean.

• 한국멀티미디어학회논문지
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• 제9권2호
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• pp.151-159
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• 2006

정보검색이나 언어번역에서의 복합명사는 사전 미등록 명사에 대한 처리에 크게 영향을 받는다. 한국어 복합명사는 그 구조가 한자어에 의해 파생한 것이 대부분으로 단위명사간 조합시 선호하는 음절이 존재한다. 이를 복합명사의 분해규칙으로 이용할 수 있다. 본 논문에서는 음절간 선호도를 이용하여 사전 미등록 복합명사에 대한 분해 방법을 제안한다. 사전 미등록 복합명사를 제안한 방법으로 분해한 결과 분해 정확률은 88.49%로서 기존의 방법보다 우수한 분해율을 보이고 있다.

• 음성과학
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• 제9권4호
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• pp.175-185
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• 2002

The purpose of this study was to investigate the acoustic durations of Korean vowels followed by either voiced or voiceless consonants. Six healthy adult speakers (2 females and 4 males) recorded nonsense syllables in which voiced (/b, d, g/) or voiceless (/p', t', k', $p^{h},t^{h},k^{h}$) consonants follow three different vowels (/i, a, u/) embedded in a carrier phrase. Results showed that vowels preceding voiced consonants (e.g., haba) were significantly longer in duration than those preceding voiceless consonants (e.g., hiP' a or $hip^{h}a$). Also vowels were longer in duration when occurring before velar-stops than before bilabial-stop and dental-stops. Finally, the duration of the low vowel (/a/) was substantially longer than that of the high vowels (/i, u/). These findings may be applicable to speech synthesis or therapy.

• 음성과학
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• 제3권
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• pp.71-82
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• 1998

Five sets of nonsense acoustical stimuli {$[sp{\varepsilon},st{\varepsilon},sk{\varepsilon}],\;[p{\varepsilon},t{\varepsilon},k{\varepsilon}],\;[sb{\varepsilon},sd{\varepsilon},sg{\varepsilon}],\;[b{\varepsilon},d{\varepsilon},g{\varepsilon}],\;['{\varepsilon}b{\varepsilon},'{\varepsilon}d{\varepsilon},'{\varepsilon}g{\varepsilon}]$} were presented for identification of English stops to native speakers of English, Chinese, and Korean. The English speakers perceived stops after /s/ as /p, t, k/; in other contexts as /b, d, g/. In the languages where other distinctions exist, however, the evaluation was different. The results suggest that in English the cue for stops after /s/ was syllable structure constraint: After initial /s/ always /p, t, k/ follow; the cue for the initial stops was aspiration. On the basis of the results, it was concluded that in English we should classify the unaspirated voiceless stops in initial /s/-stop clusters into the phoneme where [$p^{h},t^{h},k^{h}$] are in, and that perception is not only language specific but also context specific.