• 말소리와 음성과학
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• 제3권4호
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• pp.95-102
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• 2011

The purpose of this study was to identify the characteristics of the phonological discrimination ability and phonological working memory of 10 typically developing children aged 4, and 10 other children with Specific Language Impairments whose language age is similar. In orders to compare their phonological discrimination ability among phonological awareness, discrimination tasks were conducted at the syllable and phoneme levels. Also, in order to compare their phonological working memory, the subjects repeated nonsense syllables. The research results may be summarized as follows: First, the children with Specific Language Impairments demonstrated a lower performance than the typically developing children in phonological discrimination ability at both syllable and phoneme levels, and the difference between the groups was statistically significant. Second, the children with Specific Language Impairments exhibited a lower phonological working memory performance in all syllables compared with normal children. Although there was no significant difference in 2 and 3 syllables, a significant difference appeared as the length of the syllables became longer from 4 to 6 syllables. It is deemed necessary to conduct research into qualitative and quantitative differences through an formal assessment of the phonological awareness and phonological working memory of children with Specific Language Impairments.

• 한국콘텐츠학회논문지
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• 제14권4호
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• pp.491-499
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• 2014

본 연구는 중학교 7학년 국어교과서 4종에 나타나는 어휘들에 대한 통계(음절 개수, 음절 종류, 음절 출현 빈도, 어절 개수, 어절 종류, 어절 평균 길이, 어절 출현 빈도 등)를 조사하였다. 전체 한글 음절 개수는 286,801개, 한글 음절 종류는 1,350개, 음절 평균 출현빈도는 212.4회이다. 어절 개수는 109,393개, 어절 종류는 29,356개, 어절 평균 출현빈도는 3.7회이다. 평균 음절 길이는 2.7음절이며, 한글 어절 중 가장 긴 어절길이는 8이다.

• 말소리와 음성과학
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• 제7권1호
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• pp.57-65
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• 2015

This study aimed to identify the development pattern of final stop consonant perception using the gating task. Sixty-four subjects participated in the study: 16 children aged 4 years, 16 children aged 5 years, 17 children aged 6 years, and 15 adults. One-syllable words with consonant-vowel-consonant(CVC) structure, mokㄱ-motㄱ and papㄱ-patㄱ were used as stimuli in order to remove the redundancy of acoustic cues in stimulus words, 40ms-length (-40ms) and 60ms-length (-60ms) from the entire duration of the final consonant were deleted. Three conditions (the whole word segment, -40ms, -60ms) were used for this speech perception experiment. 48 tokens (4 stimuli ${\times}3$ conditions ${\times}4$ trials) in total were provided for participants. The results indicated that 5 and 6 year olds showed final consonant perception similar to adults in stimuli, papㄱ-patㄱ and only the 6-year-old children showed perception similar to adults in stimuli, 'mokㄱ-motㄱ. The results suggested that younger typically developing children require more acoustic information to accurately perceive final consonants than older children and adults. Final consonant perception ability may become adult-like around 6 years old. The study provides fundamental data on the development pattern of speech perception in normal developing children, which can be used to compare to those of children with communication disorders.

• 말소리와 음성과학
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• 제12권3호
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• pp.15-23
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• 2020

This study examines the duration of Korean lax and tense stops in the prosodic word-medial position, their interactions with nearby segments, and the phonological implications of these interactions. It first examines the lengthening of consonants at the function of the short lax stop. Experiment 1 shows that the sonorant C1 is significantly longer before a short lax stop C2 than before a long tense stop. Experiment 2 shows that the short lax stop C1 cancels the contrast between the lax and tense obstruent at C2, making them appear as long tense obstruents (Post-Stop Tensing Rule). We suggest that such lengthening phenomena occur in Korean to robustly preserve the contrastive length difference between C and CC. Second, this study examines the vowel shortening, known as Closed-Syllable Vowel Shortening, before a long tense stop or before the consonant sequence. Experiment 3 suggests that it be interpreted as temporal adjustment to make the interval from the onset of a vowel to the onset of the following vowel of near-equal length. Conclusively, we suggest that Korean speech be planned and controlled with two specific intervals. One is the duration of contrastive consonant intervals between vowels, and the other is the duration from the onset of a vowel to the onset of the following vowel.

• 한국엔터테인먼트산업학회논문지
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• 제14권7호
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• pp.343-362
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• 2020

영어는 강세 박자 언어로서 강세 변화에 의한 발화의 재구조가 이루어지는 음운체계를 갖는다. 반면 한국어는 각각의 음절을 거의 똑같은 길이와 강도로 발음하는 음절 박자 언어로 일반적 발화 속에서 한국어와 영어는 분명하게 다른 운율체계를 갖는다. 그러나 K-Pop 음악 속에서 노랫말의 언어가 한국어와 영어, 두 가지 언어로 혼용되면서 K-Pop 음악 속에서의 한국어 노랫말은 영어처럼 강세변화에 의한 운율체계를 갖게 되었다. 이러한 한국어 노랫말의 운율구조 변화 현상을 신한류 지속화를 위해 앞으로도 지속될 수밖에 없는 필연적 현상으로 보는 것이 논자의 입장이다. 따라서 본 연구에서는 K-Pop 음악의 주요 장르이자 리듬표현에 중점을 두는 댄스음악을 한류 변화 양상에 따라 1998년, 2003년, 2009년으로 구분하고, 각 시기의 노랫말 운율구조를 비교·분석하였다. 또한 이를 바탕으로 현재의 K-Pop 운율구조 특징을 도출하여 한 음표당 하나의 음절씩 배당하여 작사하던 기존의 제한적 작사법에서 벗어난 K-Pop 한국어 작사법을 제안하였다. 이 연구가 K-Pop에서 한국어 노랫말로 작사할 때의 하나의 방법론으로 활용되기를 바라며, 더불어 한국어 노랫말 사용의 장려 방안이 되기를 기대해 본다.

• 대한전자공학회논문지
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• 제13권5호
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• pp.30-34
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• 1976

24개의 기본요소를 가지고 2-7개 요소로서 한 문자를 구성하는 한글 data의 연속입력으로부터 space code없이 단음절을 자동식별하는 한 system을 제안한다. 3천여자의 한글을 30종의 form으로 form화하고, 그들 form에 대한 7개의 form 특징과 문자구간을 검출하여 단음절을 식별한다. 그 결과 연속입력되는 한글 data의 처리에서 음절분리용 space code를 사용했을 때와 비교하여 컴퓨터의 기억용량이 약 25% 절감되고 처리속도가 약 30% 향상된다.

• 대한음성학회지:말소리
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• 제38호
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• pp.113-124
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• 1999

It is well known that Japanese prosodic structure assumes mora below the syllable tier. Syllables with V or CV structure are counted as having one morn whereas those with coda consonants /-pp, -tt, -kk, -ss, -N/ or long vowels are counted as having two morns in Japanese. This study measured the acoustic duration of these special moras ('tokusyuhaku') produced by Tokyo dialect speakers to see if they are isochronic with V or CV. It also examined the production of Korean(Seoul/Kyungsang dialect) and Chinese native speakers loaming Japanese as a second language to examine how the learners' first language influence their second language. Finally, it examined how speakers of the Akita dialect, which is blown as a syllabeme dialect in Japanese, produced them. The results showed that intra-speaker variation as well as inter-speaker variation was observed in the production by Akita dialect speakers. Production of native speakers of Chinese and Kyungsang dialect of Korean -- which have vowel length contrast in their phonological systems -- showed a similar result to Tokyo dialect speakers, which implies the influence of the learners' first language on the acquisition of the second language.

• 대한음성학회:학술대회논문집
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• 대한음성학회 2004년도 춘계 학술대회 발표논문집
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• pp.143-146
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• 2004

The aim of this paper is to investigate how the stem-final consonant clusters beginning with the liquid /ㄹ/ in Korean are realized in speech. Most scholars claim that the Korean stem-final consonant clusters are simplified and reduced to a stop consonant when pronounced. An attempt is made in this paper to verify the claim by conducting a series of listening tests and an acoustic analysis. The listening tests show that, contrary to the previous claims, some Koreans actually pronounce the stem-final consonant clusters as a whole. The result of the spectrographical study confirms our auditory observation. It has been found that the duration time taken by the stem-final consonant clusters is clearly longer when both consonants are pronounced than when only a liquid is pronounced. Similarly the vowel length of the previous syllable in the former is found to be longer in scale than the latter.

• 음성과학
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• 제10권2호
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• pp.207-221
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• 2003

Phonetic voicing does not support the phonological distinction of voiced/voiceless in English stops. The present study is aimed at defining the nature of voicing of English voiced stops. A review of the literature reveals that the voicing is position-conditioned and its length is notably inconsistent relative to the closure duration. No consistent relationships are found between vocal fold adduction and glottal pulsing in initial position. Stress reduced the voicing, etc. The hypothesis for experiments was: (1) active voicing: stress generates longer (stronger) voicing during the closure duration of a voiced stop; (2) passive voicing: stress induces shorter (weaker) voicing during the closure. Instead the voiced stop becomes more voiced when the preceding vowel (syllable) is stressed. The literature review and the results of two experiments comparing English and Slovakian suggested that the voicing of English voiced stops is passive (i.e., a coarticulation of glottal pulsing for adjacent vowels-syllables) and should be distinguished from active voicing in some other languages.

• 말소리와 음성과학
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• 제6권3호
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• pp.155-164
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• 2014

This paper proposes a new method to determine the recognition units for large vocabulary continuous speech recognition (LVCSR) in Korean by applying unsupervised segmentation and merging. In the proposed method, a text sentence is segmented into morphemes and position information is added to morphemes. Then submorpheme units are obtained by splitting the morpheme units through the maximization of posterior probability terms. The posterior probability terms are computed from the morpheme frequency distribution, the morpheme length distribution, and the morpheme frequency-of-frequency distribution. Finally, the recognition units are obtained by sequentially merging the submorpheme pair with the highest frequency. Computer experiments are conducted using a Korean LVCSR with a 100k word vocabulary and a trigram language model obtained by a 300 million eojeol (word phrase) corpus. The proposed method is shown to reduce the out-of-vocabulary rate to 1.8% and reduce the syllable error rate relatively by 14.0%.