• 말소리와 음성과학
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• 제15권3호
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• pp.59-67
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• 2023

본 연구는 연장음의 길이에 따른 비유창성 지각 정도에 대해 각각 등간척도와 직접크기평정을 통한 청지각적 평가를 실시한 후, 두 평가의 결과치가 선형적인 또는 비선형적인 관계를 보이는지를 알아보고자 진행되었다. 이를 통해 연장음의 길이에 따른 비유창성 지각 정도에 대한 적절한 평가 방법을 제안하고자 하였다. 이를 위해 한국어를 모국어로 하는 만 19세 이상 성인 남녀 34명(남: 9명, 여: 25명, 평균연령: 32.9세)이 평가자로 참여였다. 실험참여자는 먼저 한국어 평마찰음 /s/를 원래 길이에서 80 ms씩 연장하여 2,000 ms(i.e., 285 ms, 365 ms., ..., 2,125 ms, 2,205 ms)까지 연장 변조한 총 25개의 자극이 들어 있는 문장을 듣고, 등간척도(1-7점, 1은 '정상', 7은 '심도')로 평가하였다. 이후에 등간척도 평가 결과, '경중도'(4점)에 해당하는 음성샘플을 선정해 이를 기준 평가치(modulus)로 하여 직접크기평정을 실시하였다. 두 평가 결과치에 대한 산포도를 작성한 후, 모형 분석을 통해 두 측정치 간의 관계가 선형적(linear)인지 비선형적(curvilinear)인지 R²값을 통해 조사하였다. 연구 결과, 두 평가 결과치의 관계가 비선형적인 양상을 보이는 것으로 나타났으며 이는 연장음의 길이에 따른 비유창성 정도 평가에 있어 등간척도보다는 직접크기평정이 적절한 평가 방법임을 보여주는 결과이다.

• 말소리와 음성과학
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• 제14권2호
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• pp.67-76
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• 2022

본 연구는 한국어 화자의 말소리 연장에 대한 비유창성 양상(즉, 단속적 vs. 연속적)을 알아보기 위해 진행되었다. 총 35명의 성인(남자 17명, 여자 18명)이 한국어 평마찰음 /s/를 원래 길이에서 20 ms씩 980 ms까지 연장 변조한 총 50개의 자극이 들어 있는 문장을 듣고, 비유창성 정도에 대해 1에서 100점(100에 가까울수록 매우 비유창함) 척도로 평가하였다. 연장음 길이에 따른 비유창함 정도의 지각 양상을 알아보기 위해 곡선추정회귀분석을 실시하였으며, 수정된 R 제곱값(adjusted R²)이 가장 높은 수치의 모형을 선정하였다. 각 연장음에서의 비유창함 정도에 대해 남녀 간 차이를 알아보기 위해 일변량분석[one-way analysis of variance(ANOVA)]을 실시하였다. 또한 혼합분산분석(mixed ANOVA)을 통해 전체 연장음 구간을 10분위(decile)로 나누어 각 분위와 남녀 간의 효과, 그리고 두 변수 간 상호작용 유무를 알아보았다. 연구 결과, 연장음의 길이와 비유창함 정도 점수 간의 관계는 S자형 모형의 연속적인 지각 특성을 보였다. 비유창함 정도 지각에 있어 각 연장음에서 유의한 남녀 간 차이가 나타나지 않았다. 분위 분석결과, 연장음 길이가 짧아 상대적으로 유창하게 들리는 구간(1분위)에서는 남녀 간 유의한 차이가 나타나지 않았다. 하지만 연장음 길이가 길어 상대적으로 비유창하게 들리는 구간(10분위)에서는 남자가 여자보다 더 비유창하게 지각하였다. 본 연구결과를 바탕으로 이전 연구들과 비교를 통한 논의와 함께 말더듬 평가와 관련해 임상적 제언도 기술하였다.

• 말소리와 음성과학
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• 제2권3호
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• pp.75-80
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• 2010

The present research investigated the characteristics of voice between genders and nationalities by measuring the acoustic parameter values of Korean and Chinese students. Sound Forge was used to collect voice samples and Praat was used to measure and analyze jitter, shimmer, NHR, $sF_0$, and pitch range. The results of this research are a follows. First, during prolongation of the vowels, there was no significant difference in $F_0$ between Korean and Chinese males and Korean and Chinese females. Korean males and females had higher $F_0$ values than Chinese males and females. Secondly, during sentence reading, there was no significant difference between Korean and Chinese males in $sF_0$. But between female groups, there was a significant difference in $sF_0$. Thirdly, during sentence reading, the pitch range in Korean males was found to be narrower compared to Korean and Chinese females who had wider pitch range, showing a significant difference. Fourthly, jitter in the five vowels /a, i, u, e, o/ was found to be higher in Chinese than Korean subjects. In the vowels /a, e, u/ females were higher than males showing a significant difference. Fifthly, shimmer in the vowels /a, e, u/ was found to be higher in Chinese than Korean subjects showing a significant difference. Finally, NHR in the vowels /a, u, o/ was found to be higher in Chinese than Korean subjects showing a significant difference.

• 대한후두음성언어의학회지
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• 제11권1호
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• pp.81-86
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• 2000

Submucous cleft palate is a relatively uncommon congenital anomaly accompanying velopharyngeal incompetence(VPI). Double opposing Z-plasty has many advantages including prolongation of soft palate, normal midfacial growth, midline scar. We analyzed postoperative results comparing with those of preoperative evaluation by several variables(nasometer, endoscopy, satisfactory scale) in 14 patients treated with double opposing Z-plasty due to submcous cleft palate. Nasalance score in Ah sound, Ma phrase, and Pa phrase decreased 20.23%, 3.25%, and 23.26% in the average, respectively. As a result, hypernasality improved significantly. Closure rate in velum evaluated by endoscopy was increased from 0.44 to 0.76. In objective satisfactory scale checked by each patient's guardian at the postoperative period, much improved in 3, improved in 6, minimally improved in 1, and no difference in 1 was reported. (n=11 patients) Double opposing B-plasty is a good surgical modality in patients accompanying VPI with submucous cleft palate or incomplete cleft palate and will be used more usefully and widely.

• 대한임상검사과학회지
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• 제38권3호
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• pp.224-230
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• 2006

Up to now, there have been rare clinical studies on leaders and aerobics athletes. To get the useful data for protecting from auditory disorder, we selected 15 female aerobics leaders (experimental group) and 15 females (control group) unexperienced in aerobics and a without neurological and octolaryngological disorder. The average age was $34.87{\pm}8.80$ (experimental group) and $34.07{\pm}8.45$ (control group) years, and the average career of an aerobics leader (experimental group) was $8.33{\pm}4.73$ years. We measured the auditory evoked potential (AEP) of the two groups treated with 70, 75 and 85 dB intensity from January 2006 to May 2006 and analyzed the absolute latency (AL) and interpeak latency (IPL) by the SPSS/pc+ 12.0 program. In the comparison of the AL between the experimental group and the control group according to intensity, both ears treated with 70 and 75 dB had a significant difference (p<0.05) in the I, III, V wave and in the I, V wave respectively, and the experimental group treated with 85 dB showed a difference in the I, III, V wave (left ear) and in the I wave (right ear) respectively. The IPL of the two groups treated with various intensities had no prolongation. In the comparison of the AL between the experimental group and the control group according to ages, the experimental group in their 20s treated with 70 dB showed a significant difference (p<0.05) in the V wave (left ear) and in the I, III, V wave (right ear), and the experimental group in their 20s treated with 75 dB in the I, III wave (left ear) and in I, III, V wave (right ear), and experimental group in their 20s treated with 85 dB in the V wave (left ear) and in the III, V wave (right ear). The experimental group in their 30s treated with 70 dB had a significant difference (p<0.05) only in the V wave (right ear). Only in the IPL of subjects in their 20s treated with 85 dB, III-V and I-V of both ears was extended. In the comparison of the AL and IPL according to career, there was no significant difference between the two groups. From this results, we concluded that the lower sound intensity (70 dB) showed a more significant difference in the experimental group than the control group. We concluded that the leader of aerobics exposed to louder sounds than normal people are affected by auditory neurological and octolaryngological disorders. So we think that the leaders of aerobics need to control the noise level for protecting themselves against a disease.