• 대한음성학회:학술대회논문집
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• 대한음성학회 1996년도 10월 학술대회지
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• pp.399-403
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• 1996

This paper addresses issues of perceptual constancy in speech perception through the use of a spatial metaphor for speech sound identity as opposed to a more conventional characterisation with multiple interacting acoustic cues. This spatial representation leads to a correlation between phonetic, acoustic and auditory analyses of speech sounds which can serve as the basis for a model of speech perception based on the general auditory characteristics of sounds. The correlations between the phonetic, perceptual and auditory spaces of the set of English voiceless fricatives /f $\theta$ s $\int$ h / are investigated. The results show that the perception of fricative segments may be explained in terms of 2-dimensional auditory space in which each segment occupies a region. The dimensions of the space were found to be the frequency of the main spectral peak and the 'peakiness' of spectra. These results support the view that perception of a segment is based on its occupancy of a multi-dimensional parameter space. In this way, final perceptual decisions on segments can be postponed until higher level constraints can also be met.

• 대한음성학회지:말소리
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• 제46호
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• pp.13-24
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• 2003

This experimental study shows that, in reading of the English isolated words that are enumerated, the releasing of the word-final stop is employed for signaling enumeration in company with the well-known intonational pattern for it. Furthermore, this study tries to find the aspects of the releasing of the stops in the word-final positions, focusing on the association of the stop releasing/nonreleasing with i) the POA (Place of Articulation) distinction of the word-final stop, ii) the various qualities of the vowel before the final stop, and iii) the voice distinction of the stop in the word-final position.

• 대한음성학회:학술대회논문집
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• 대한음성학회 2007년도 한국음성과학회 공동학술대회 발표논문집
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• pp.49-51
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• 2007

The purpose of this study is to investigate prosodic characteristics of cerebral palsic adults' speech. The results showed some correlations between their articulation scores and prosodic properties of their speech: speakers with low articulation scores showed slower speech rate, larger number of IPs and pauses, and longer duration of pauses. They also showed steeper slopes of [L +H] in their APs.

• 대한음성학회:학술대회논문집
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• 대한음성학회 2007년도 한국음성과학회 공동학술대회 발표논문집
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• pp.292-294
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• 2007

This study was designed to compare the translated patient's subjective rating scales for voice evaluation (Voice Handicap Index; VHI, Voice-Related Quality of Life; V-RQOL, Voice Rating Score; VRS) into Korean, taken from 24 professional voice users diagnosed with organic voice disorders. First, the correlation amongh those scales were observed. Second, the correlation between the patient's subjective rating scales and acoustic measures (Jitter%, Shimmer%, NHR) were examined. Third, those scales were compared by clinician's objective scale (G in GRBAS scale). Results indicated that significant correlations among the patients' subjective rating scales and significant correlations of clinician's rating scale with jitter% and Shimmer%, but not with NHR were observed. In addition, there were significant correlations of G with VHI and VHI-P (one of subscale of VHI). However, none of acoustic measures were correlated with the patient's subjective rating scales.

• 대한치과보철학회지
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• 제30권2호
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• pp.191-202
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• 1992

The purpose of the present study is to inspect the satisfied degree of each oral function in geriatric patients with the shortened dental arch and when their prosthetic treatment is on schedule, provide some references to such treatment. For the approach to such study, 521 subjects were reviewed by grouping them according to the number of their remaining teeth, and masticatory function, phonetic function, facial change, and TMJ disorders were inspected and clarified through some questionnaires. Also through the questionnaires, the correlations between the geriatiric patients with the shortened dental arch and dentition and between the geriatiric patients with the Free-end RDP at the shortened dental arch and their oral function were found out with their satisfied degree of oral function. Results or findings from such study are as follows : 1. With regard to their satisfied degree of oral function, there was a significant difference of satisfaction between or among the group having only the anterior teeth and the group having the part of premolars and the group having even the part of molars, however no significant difference of satisfaction appeard between the group having 1st molars and the group having 2nd molars. 2. With regard to their satisfied degree of phonetic function, no significant difference appeared between or among the group having only the anterior part of teeth and the group having even the part of premolars and the group having even the part of molars, and with regard to their satisfied degree of facial change, no significant difference of satisfaction appeared between the group having the part of premolars and the group having even the part of molars. 3. With regard to their satisfied degree of masticatory function, phonetic function, TMJ disorders, and facial change, no significant difference appeared between the group having both the anterior part of teeth and the part of premolars and the group attached with the Free-end RPD on the same conditions of the afore-said group.

• 한국콘텐츠학회논문지
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• 제15권2호
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• pp.542-551
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• 2015

본 연구에서는 한국 학생들이 영어 모음들을 어떻게 인지하고 발화하는지 알아보기 위해서, 영어 전공과목을 수강하는 42명의 대학생들을 대상으로 11개의 영어 목표 모음 /i, ɪ, eɪ, ${\varepsilon}$, ${\ae}$, ${\alpha}$, ɔ, oʊ, ʊ, u, ʌ/이 들어간 영어 단어를 가지고 인지와 발화테스트를 사전과 사후 두 차례 실시하였다. 통제집단에 대해서는 영어음성학 전공수업을 통한 이론학습만을 진행하였고, 실험집단에 대해서는 이론학습과 더불어 인지와 발화 훈련을 4주간 실시하였다. 구체적인 연구의 목적은 사전테스트를 실시한 이후 4주간의 훈련과 연습을 통해 사후 인지와 발화 정확도가 얼마나 향상되었는지를 알아보는 것과 두 집단이 보인 인지와 발화의 상관관계가 사전과 사후테스트에서 어떠한지를 살펴보는 것이다. 테스트 결과 사전테스트에서는 통제와 실험 두 집단이 인지와 발화에서 강한 상관성을 보인 반면, 사후테스트에서는 두 집단 모두 인지와 발화 간에 상관성이 없는 것으로 나타났다. 이와 같은 결과는 두 집단의 사후 인지와 발화 정확도의 변화가 주된 요인인 것으로 나타났다. 통제집단은 인지에서 사후 변동 폭이 컸던 반면, 실험집단은 발화의 변동 폭이 더 컸고, 이러한 사후 인지와 발화의 변동이 상관관계에도 영향을 주었다. 이와 같은 실험 결과를 바탕으로 교육적인 함축점도 논의되었다.

• ETRI Journal
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• 제35권1호
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• pp.89-99
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• 2013

The problem of the sentence-based pronunciation evaluation task is defined in the context of subjective criteria. Three subjective criteria (that is, the minimum subjective word score, the mean subjective word score, and first impression) are proposed and modeled with the combination of word-based assessment. Then, the subjective criteria are approximated with objective sentence pronunciation scores obtained with the combination of word-based metrics. No a priori studies of common mistakes are required, and class-based language models are used to incorporate incorrect and correct pronunciations. Incorrect pronunciations are automatically incorporated by making use of a competitive lexicon and the phonetic rules of students' mother and target languages. This procedure is applicable to any second language learning context, and subjective-objective sentence score correlations greater than or equal to 0.5 can be achieved when the proposed sentence-based pronunciation criteria are approximated with combinations of word-based scores. Finally, the subjective-objective sentence score correlations reported here are very comparable with those published elsewhere resulting from methods that require a priori studies of pronunciation errors.

• 대한음성학회:학술대회논문집
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• 대한음성학회 2004년도 춘계 학술대회 발표논문집
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• pp.219-222
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• 2004

The purpose of this study was to determine a correlation between acoustic and perceptual parameters of the singing voice in singing students and compare them with the results with previous studies, and a more sensitive parameters in analyzing professional vocal usage. This study measured acoustic and perceptual parameters in 41 singing students. Digital audio recordings were made in sung vowels acoustic analysis. Each sample was judged by 1 experienced singing teacher and 1 voice pathologist on two semantic bipolar 7-point scales (ringing-dull, rich-thin). The results showed that SPP1 (p<0.01), SPP2 (p<0.01), and P1(p<0.01) had significant correlations with ringing and richness quality.

• 대한음성학회지:말소리
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• 제64호
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• pp.39-51
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• 2007

The purpose of this study is to investigate prosodic characteristics in the speech of adults with cerebral palsy through a comparison with the speech of normal speakers. Ten speakers with cerebral palsy (6 males, 4 females) and 6 normal speakers (3 males, 3 females) served as subjects. The results revealed that, compared to normal speakers, speakers with cerebral palsy showed a slower speech rate, a larger number of intonational phrases(IPs) and pauses, a larger number of accentual phrases(APs) per IP, a longer duration of pauses, and more gradual slopes of [L +H] in APs. However, the two groups showed similar tone patterns in their APs. The results also showed mild to moderate correlations between speech intelligibility and the prosodic properties which showed significant differences between the two groups, suggesting that they could be important prosodic factors to predict speech intelligibility in the speech of adults with cerebral palsy.

• 대한음성학회:학술대회논문집
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• 대한음성학회 2003년도 10월 학술대회지
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• pp.83-88
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• 2003

This study carried out an experimental English pronunciation assessment to see the differences in the relationship between the different rater categories. The result shows that i) correlation between Korean and Native American raters is high(r=.98) enough to be considered reliable, ii) previous instructions about assessment rubric and the knowledge about English phonetics and phonology exert little influence on the rating scores, iii) correlation between the automatic ILT(Interactive Language Tutor) rating using speech recognition technology and Natives' rating is stronger than that between ILT and Koreans' rating.