• 대한후두음성언어의학회지
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• 제10권1호
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• pp.43-49
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• 1999

Objectives : The purpose of this study was to systematically analyze and compare e acoustic sound structure of vocal major student's singing voice. Materials and Methods : The nineteen vocal major students were the subject group and healthy nineteen females were the control group for this study. The subject group was taken a strobovideolaryngoscopy by the use of flexible nasopharyngoscopy. And acoustic analysis was taken between two groups. Additionally the inquiry on usual voice problems and management was performed by thirty-six vocal major students. Results : The subject group presents many functional voice disorder findings such as AP contraction(44%), phase difference(36%) tremor(25%), posterior gap(17%), hyperadduction of vestibular fold(6%), and anterior gap(3%) on strobovideolaryngoscopy. And the vocal major students did reveal an enhanced number of high frequency harmonic partials when singing compared to the control group in the narrow band spectrum study. But there was no significant difference in jitter, shimmer and noise to harmonic ratio in both groups. Almost all vocal major students present a lot of voice problems in singing such as loss of high note(17%), loss of quiet voice(17%), effortful and tired voice(36%) etc on inquiry. And they always effort to prevent vocal dysfunction by the use of various type of method such as voice rest(28%), hydration(28%), gargling with salt(11%) etc. Conclusions : The vocal major students always take care of maintaining a good voice condition, but a lot of vocal major students revealed abnormal strobovideolaryngoscopic findings and they are absent in the conception of systemic and scientific voice management. Therefore, the young singers need a good voice training and voice therapy Program under the good ralationship of laryngologist and voice training teacher.

• 대한후두음성언어의학회지
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• 제10권2호
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• pp.135-139
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• 1999

Objectives : The purpose of this study was to systematically analyze and compare the acoustic characteristics of vocal major students with vocal nodule when singing. Materials and Methods : Ten sopranos with vocal nodule, who have never been treated due to voice problems, were the subject group. Twenty healthy sopranos major students were the control group for this study. The vocal nodule was confirmed by stroboscopy and the acoustic and electroglottographic analysis was conducted on be groups. Additionally, an inquiry on usual voice problems during speaking and singing were performed on each of the groups. Results : The vowel /a/ was spoken and sung by sopranos of each group. There were no significant differences in Fo, jitter, shimmer, NHR at speaking and singing in either group. We did not register any significant differences of closed quotient and speed quotient in electroglottography for both groups at singing, but speed quotient was increased in subject group at speaking(p＜0.05). And the sopranos with nodule demonstrated voice fatigue(70%), strained and tired voice after long period of performance and conversation(60%) on inquiry. Conclusions : Although they had a vocal nodule, this group, who had a long period of voice training, did not present any differences in acoustic and electroglottographic problems during short performance, but, the vocalists noticed delicate voice problems after a long performance. We conclude that the voice training teacher and laryngologist must initiate voice management and speech therapy for vocal nodule, even if there is no specific abnormality in acoustic analysis.

• 말소리와 음성과학
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• 제6권2호
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• pp.37-45
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• 2014

The purpose of this study was to determine whether the Korean Singing Voice Handicap Index (K-SVHI) was suitable for singers in other genres than vocal music to assess their vocal problems subjectively. Twenty six college students majoring in vocal music and twenty six students majoring in applied music were included in the study. They were divided into G0 and G1 in voice quality using the GRBAS scale during the tasks of singing. K-SVHI was divided into three sub-areas (Physical, Functional, and Emotional). In the singing task, both groups showed no significant difference between K-SVHI scores by G scale. In the reading task, the vocal music group had significantly higher K-SVHI in G0 than in G1 in K-SVHIs by G scale, while the applied vocal music group had significantly higher K-SVHI in G1 than in G0. Also, the two groups were not significantly different in G0, G1 in the singing task while the vocal music group showed higher K-SVHI than the applied vocal music group in G0 in the reading task. In addition, the vocal music group had higher K-SVHI than the applied vocal music group in G1 in both tasks. As comparing by groups in three sub-areas of K-SVHI, significant differences were found in the Emotional and Functional area. Those results showed that singers felt their voice problems differently by musical genres, which means that K-SVHI may not be a proper tool for evaluating voice handicap of singers in diverse voice music genres.

• 대한후두음성언어의학회지
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• 제27권2호
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• pp.114-121
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• 2016

Background and Objectives : Many students major in applied music singing have various difficulties in phonation when they sing or perform. But the studies about this cause are lack. The purpose of this study is whether singing voice therapy based on vocal music is effective or not to applied music singing students that have difficulties in phonation. Materials and Methods : Singing voice therapy program had been done to 8 students major in applied music singing during 7 weeks. We did laryngeal stroboscope, perceptual, acoustic and aerodynamic examination before and after singing voice therapy to this students. And we studied post examination results have differences or improvements compared to pre examination results. Results : Four male students don't have effective improvement after singing voice therapy but they shows slight improvement in aerodynamic examination values compared to pre examination values. Four female students shows improvement in aerodynamic examination values and pitch range increasing. Above all, one student's vocal nodules disappeared after singing voice therapy. Conclusion : Singing voice therapy based on music singing is very effective to the students major in applied music singing. Above all, their curriculum in applied music singing should include phonation training based on music singing before training perform and technic practices.

• 말소리와 음성과학
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• 제16권2호
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• pp.59-69
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• 2024

성악과 실용음악 간에 추구하는 노래와 발성의 차이로 인해 이들의 음성위생에 대한 지식과 수행하는 수준은 다를 수 있다. 본 연구는 대학교에서 성악 또는 실용음악을 전공하는 대학생 121(성악전공생 58, 실용음악전공생 63)명을 대상으로 음성위생 지식과 수행을 비교하였다. 또한 음성위생 지식과 수행 정도와 주관적 음성평가 간의 상관성을 살펴보았다. 연구결과, 음성위생 지식과 수행 모두 성악전공생이 실용음악전공생에 비해 유의하게 높았으며, 전체 집단에서 음성위생 수행이 지식에 비해 유의하게 높은 점수를 보였다. 또한 음성위생 지식과 수행 정도는 낮은 양의 상관관계를 보였고, 음성위생 수행과 주관적 평가는 낮은 음의 상관관계를 보였다. 본 연구를 통해 성악전공생에 비해 실용음악전공생이 음성위생 지식과 수행 정도가 상대적으로 낮다는 것을 알 수 있다. 또한 성악전공생과 실용음악전공생 모두 특정 음성위생 항목에 대한 지식과 수행수준이 낮아 이들에게 맞는 맞춤형 음성위생 교육프로그램을 제공할 필요가 있음을 밝혔다.

• 음성과학
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• 제4권1호
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• pp.19-34
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• 1998

The author collected and compared midsagittal, coronal, coronal oblique, and transversal images of Korean monophthongs /a, i, e, o, u, i, v/ produced by a healthy male speaker using 1.5 T MR, VISION. Area was measured by computer software after tracing the cross-section at different points along the tract. Results showed that the width of the oral and pharyngeal cavities varied compensatorily from each other on the midsagittal dimension. Formant frequency values estimated from the area functions of the seven vowels showed a strong correlation (r=0.978) with those analyzed from the spoken vowels. Moreover, almost all of 35 students who listened to the synthesized vowels from area data perceived the synthesized vowels as equivalent to the spoken ones. Movement of constriction points of vowel /u/ with wider lip opening sounded /i/ and led to slight changes in vowel quality. Jaw and tongue movement led to major volume variation with an anatomical limitation. Each comer vowel varied systematically from a somewhat constant volume of the average area. Thus, the author proposed that any simulation studies related to vocal tract area variation should reflect its constant volume. The results may be helpful to verify exact measurement of the vocal tract area through vowel synthesis and a simulation study before having any operation of the vocal tract.

• 말소리와 음성과학
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• 제6권3호
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• pp.49-56
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• 2014

This research compared the features of respiration and phonation between practical musicology students and general male students, according to their smoking status. Participants of this research are 15 practical musicology male students attending ${\bigcirc}{\bigcirc}$ university and 16 general ${\bigcirc}{\bigcirc}{\bigcirc}$ university students. The participants, both non-smokers and smokers with 5-years of smoking history have no history of voice disease in any case and have normal cognitive functions. The results indicated that, first, there is not a notable difference in the respiratory activity status(FVC, FEV1, FEV1/FVC), regardless of major and smoking status. In MPT, even though there is no significant difference in accordance with their majors, considering smoking status, the smoker group was shorter than non-smoker group significant difference statistically (p<.01). Second, the divisions of participants' major did not show significant difference in Fo, jitter, shimmer, and NHR in the vowel prolongation task. However, the smoker group showed a significantly higher degree of jitter and shimmer than the non-smoker group (p<.05) as Fo and NHR shows no difference. In the case of VRP, maximum frequency and frequency range of the practical group are significantly higher than normal group statistically (p<.001). Moreover, although the difference of the minimum frequency shown at the statistic is not significant, practical group showed a higher tendency of frequency than normal group (p=.051). In conclusion, even though there is no difference in respiratory activity between the smoker group and non-smoker group, the MPT of the smoker group is shorter than that of non-smoker group. In addition, the smoker group showed a higher degree of jitter and shimmer than the non-smoker group. MPT is related to the valve action of vocal fold that passes through the glottis. Thus, it is interpreted that the smoker group has a lower quality of voice and valve action of the vocal fold. Also, the practical group has a higher degree of maximum frequency and frequency range than the normal group. This research can function as basic data for vocal characteristics for the majors in relation to the voice-specializing.

• 한국음향학회지
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• 제42권1호
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• pp.75-82
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• 2023

본 연구의 목적은 다른 음역대의 목소리로 노래한 음악(고음역대, 저음역대)과 불려진 음악이 조성적으로 다른 경우(장조/단조) 감상자가 경험하는 정서적 반응에 차이가 있는지를 살펴보았다. 음악은 첫째 옥타브 차이를 두고 높은 음역대와 낮은 음역대의 가창 영역과 둘째, 조성적 변인을 통제하기 위해 장조와 단조를 사용한 총 네 가지 음원을 사용하였다. 총 188명의 여성 대학생들이 온라인 설문으로 참여하였으며 시각아날로그척도(Visual Analogue Scale)을 사용하여 지각한 정서가와 각성 수준을 기록하였다. 수집된 자료는 two-way analysis of variance(ANOVA)를 이용하여 분석하였다. 분석 결과 두 음역대 간의 유의미한 정서 반응 차이를 보여주었으며 정서가(valence)보다는 각성 수준(arousal level)에 더 많은 차이를 보여주었다. 둘째, 조성 또한 정서가와 각성 수준에 영향을 미쳤으나 두 정서 변인 중에서는 정서가에 더욱 큰 차이를 보였다. 또한 교호작용을 분석한 결과 음역대와 조성의 상호작용이 정서가에게는 큰 영향을 미치지만 각성에는 영향을 미치지 않는다는 것을 보여주었다. 더 나아가 감상자들이 단조 음악의 높은 음역대 조건에서 가장 부정적인 정서가를 보여주였고 단조 음악의 낮은 음역대 조건에서는 가장 낮은 각성 반응을 보여주었다. 이러한 결과는 음악 감상시 그 음악의 음역대와 조성을 고려해서 선곡해야 함을 암시한다.

• 말소리와 음성과학
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• 제16권2호
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• pp.37-47
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• 2024

본 연구는 대중가요 관련학과에서 보컬을 전공하고 있거나 입시를 준비하는 전공하는 남성 27명을 대상으로 자신의 성종과 음역을 제대로 파악하고 있는지를 살펴보기 위해 주관적으로 평가한 성종과 음향학적으로 평가한 성종 간에 차이가 있는지를 비교하였고, 성종 간 기본주파수(fundamental frequqency, F0)와 평균발화기본주파수 간의 차이도 비교하였다. 또한, 이들이 모음에 따라 고음역에서 산출할 수 있는 정도가 다를 수 있으므로 극모음인 /a/, /i/, /u/ 모음 간 음역의 차이와 성종별로 구분하여 모음 간 음역의 차이가 있는지를 살펴보았으며, 모음별로 성종 간에 음역의 차이가 있는지도 비교하였다. 연구 결과, 대중가요 보컬을 전공하거나 입시를 준비하는 남성의 절반 이상이 본인의 성종을 정확하게 파악하지 못하고 있으며, 모음 간에 최대기본주파수와 주파수범위는 통계적으로 유의한 차이를 보여 모음의 종류에 따라 산출할 수 있는 음역의 차이가 있음을 알 수 있었다. 특히 모음 /a/>/u/>/i/ 순으로 음역이 감소하였다. 이는 모음 /a/가 다른 모음에 비해 고음역에서 조음하기에 용이하지만, 모음 /u/와 /i/는 고모음으로 혀의 위치가 상승함으로써 구강 면적이 좁아지고 후두의 상승이 동반되기 때문에 음역이 감소하고 고음에서 발성하기에 어려움이 초래된다는 것을 알 수 있다.