• 디지털콘텐츠학회 논문지
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• 제18권6호
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• pp.1049-1056
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• 2017

본 연구는 스피치교육의 효과를 측정하는데 있어 화자의 목소리의 변화에 주목하였다. 본 연구에서는 스피치교육을 통해 얻게 되는 실질적 효과 중 목소리의 변화를 보다 가시적이고, 과학적으로 평가하고자 하였다. 연구결과 모든 학습자의 목소리에서 스피치교육 전과는 다른 객관적인 변화를 찾을 수 있었다. 학습자 모두 공명, 음색, 발음의 정확성, 휴지 등 다양한 목소리 요소에서 점진적 기술향상이 이루어졌다. 즉, 스피치교육을 받기 전보다 목소리가 풍부해지고 발음이 정확하고, 휴지를 잘 활용하는 안정화된 결과를 볼 수 있었다. 이 연구결과를 통해 스피치훈련을 통해 목소리의 변화가 나타날 수 있는지 분석하고, 스피치 학습자들이 스피치교육에 적극 임해 스피치실력 향상의 결과를 얻을 수 있을 것으로 기대된다.

• 대한후두음성언어의학회지
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• 제16권1호
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• pp.28-32
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• 2005

Background and Objectives : The most important two factors of the voice production are the respiratory function which is the power source of voice and the glottic closure that transform the air flow into sound signals. The purpose of this study was to investigate the differences between trained singers and untrained controls under varying intensity at a constant vocal pitch by simulataneous using the airway interruption method and electroglottography(EGG). Materials and Methods : Under two different intensity condition at a constant vocal pitch(/G/), 20(Male 10, Female 10) trained singers were studied. Mean flow rate(MFR), subglottic pressure(Psub) and intensity were measured with aerodynamic test using the Phonatory function analyzer. Closed quotients(CQ), jitter and shimmer were also investigated by electroglottography using Lx speech studio. These data were compared with that of normal controls. Results : MFR and Psub were increased on high intensity condition in all subject groups but there was no statistically significance. Statistically significant increasing of CQ. were observed in male trained singers on high intensity condition (untrained male : 51.31${\pm}$3.70%, trained male :55.52${\pm}$6.07%, p=.039). Shimmer percent, one of the phonatory stability parameters, was also decreased statistically in all subject groups(p<.001). Conclusion : The trained singers' phonation was more efficient than untrained singers. The result means that the trained singers can increase the loudness with little changing of mean flow rate, subglottic pressure but more increasing of glottic closed quotients.

• 센서학회지
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• 제14권6호
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• pp.415-422
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• 2005

Using stretch sensors, a stuttering treatment training device that improve the abnormal breathing of stutterer was designed and developed. To improve stutterer's inadequate breathing method that is one of principal reason of stammering, the device estimates breathing method by checking the changes of the stretch sensor's resistances those are put on the chest and abdomen of user. And a vocal exercise program that carry out exercises only when the user maintains the abdominal breathing was designed. Using a PIC16C711 device that includes an A/D convertor, a main controller was designed and the vocal exercises software was developed using Director and C program with graphic user interface for user convenience. The controller sends the resistance data of sensors to PC through the serial port and the software verifies the breathing method. And the device was designed that the RTS (request to send) pin of serial port in PC is used as a power source so that it can work without any battery or other power source. Three stutterers have carried out the clinical experiments using the implemented device for two months and the results showed it was excellent to alleviate the stuttering.

• 한국지능시스템학회논문지
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• 제20권4호
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• pp.528-533
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• 2010

본 논문에서는 인간의 감정 변화의 영향을 적게 받는 음성 인식 시스템의 학습 방법에 관한 연구를 수행하였다. 이를 위하여 우선 다양한 감정이 포함된 음성 데이터베이스를 사용하여 감정 변화가 음성 신호와 음성 인식 시스템의 성능에 미치는 영향에 관한 연구를 수행하였다. 감정이 포함되지 않은 평상의 음성으로 학습된 음성 인식 시스템에 감정이 포함된 인식 데이터가 입력되는 경우 감정에 따른 음성의 차이가 인식 시스템의 성능을 저하시킨다. 본 연구에서는 감정의 변화에 따라 화자의 성도 길이가 변화한다는 것과 이러한 변화는 음성 인식 시스템의 성능을 저하시키는 원인 중의 하나임을 관찰하였다. 본 연구에서는 이러한 음성의 변화를 포함하는 학습 방법을 제안하여 감정 변화에 강인한 음성 인식 시스템을 개발하였다. HMM을 사용한 단독음 인식 실험에서 제안된 학습 방법을 사용하면 감정 데이터의 오차가 기존 방법보다 28.4% 감소되었다.

• 말소리와 음성과학
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• 제9권4호
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• pp.107-114
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• 2017

The purpose of the current study was to compare selected acoustic and electroglottographic measures (closed quotient, pitch, and loudness) among vowel phonation, traditional voiced lip trill ($VLT_T$), modified voiced lip trill methods ($VLT_M$). A total of 21 participants without voice complaints produced 4-second long samples using each phonation method. Results indicated that mean closed quotient of $VLT_M$ was higher than that of vowel phonation and $VLT_T$, while its range and standard deviation measures were higher than those of vowel phonation. Mean, range, standard deviation, maximum of pitch measures of $VLT_M$ were higher than those of vowel phonation. Lastly, mean and maximum loudness of the $VLT_M$ were higher than $VLT_T$. In conclusion, the current data indicate the possibility to use the $VLT_M$ as a training method for singing or a strategy to facilitate generalization effect of voice therapy. Current results also reflect the necessity for further study pertaining to the long-term effect of the $VLT_M$ training method. Clinical implications are discussed.

• Journal of Korean Biological Nursing Science
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• 제15권2호
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• pp.65-73
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• 2013

Purpose: The purpose of this study was to review the literature on music intervention for neurological patients in Korea and to explore the effect of music intervention on functional rehabilitation of neurological patients. Methods: This systematic review examined literature from 2005 to 2010. The existing literature was searched in the electronic databases of RISS and KISS using the following keywords: music, rhythmic movement, stroke, brain injury, dementia, Parkinson, spinal cord injury. Seventy-seven studies were founded through the database. After The exclusion of duplicates, case studies, literature review, and irrelevant studies, nine studies were included for analysis. Results: They included nine quasi-experimental studies. The medical diagnoses of the study participants were stroke, dementia, brain injury, and spinal cord injury. Among nine studies, only two studies were conducted in the nursing area. Eight studies used comprehensive music programs composed of health education, gait training, vocal training, or relaxation therapy, and these comprehensive programs were effective in the areas of physical and psychosocial treatment. Seventeen sessions were provided on average throughout intervention, and the average duration of each session was 49.4 minutes. Conclusion: Comprehensive music intervention can be implemented in nursing care for patients with neurological problem.

• 대한후두음성언어의학회지
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• 제22권2호
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• pp.111-114
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• 2011

All singers can often develop voice trouble secondary to vocal abuse and overuse, but it is well known that traditional Korean singer (pansori) develop voice disorders more frequently than western style sunger. While laryngological concern for voice disorders arising in professional singers has received some attention, empirically motivated investigations of the underlying acoustic features of the singing voice have been relatively limited. Since all singers have a good knowledge of the voice and voice training, they would hardly give consent for treatment to a doctor unless he understood their desire to maximize their voice quality. The components of this report are composed of breathing, basic ekement, and vocalization, essencial fact, for getting a perfect voice for pansori. The breathing is based on hypogastric breathing. The main functions of breathing are energy and power of utterence, tempo of rhythm and seperating paragraph and controlling feelings according to dramatic situation. Vocalization is based on general vocalization. Main uses of it are maintaining singer's tone and harmony of cosmetic dual force.

• 말소리와 음성과학
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• 제7권2호
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• pp.39-45
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• 2015

This research was conducted to investigate the voice related needs of occupational voice users. The data collected from teachers(379), tele-marketers(156), therapists(50) was classified according to its content, by colaizzi's inductive categorical analysis. The voice related needs are classified into 3 big categories, 1) how to use, 2) how to care, 3) how to be healthy. Again the category 'how to use' my voice was into 6 sub-categories: (1) efficiently, (2) as I desired, (3) without pain(discomfort), (4) expressively, (5) phonation (methods) and (6) clear articulation. The result showed that the needs from 3 groups of occupational voice users reflect their own environment which they have to use their voice as well as the voice characteristics wanted from their specific listeners.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2014년도 추계학술발표대회
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• pp.340-342
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• 2014

음악을 구성하는 중요한 3 가지 분류는 가락, 리듬, 박자이다. 성악을 학습하기 위하여 가락의 대표적인 속성인 음정을 분석한다. 서로 다른 음정은 각기 고유한 주파수를 갖고 있으므로, 주파수를 분석 함으로써 음정의 옳고 그름을 판단 할 수 있고, 이를 토대로 사용자를 교육할 수 있다. 본 논문에서는 안드로이드 플랫폼 상에서 사용자의 음성을 인식 하고 주파수로 변환하는 알고리즘과 주파수와 음정 매칭 알고리즘을 제안한다.

• International Journal of Computer Science & Network Security
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• 제21권5호
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• pp.43-47
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• 2021

In the course of this article, the concept of "innovation" was considered and analyzed, which is considered not only as a subject, something new, but also as a process. The process of introducing something new into life, and in our case, into the educational process. Innovative educational technologies are varied and plentiful. In this article, the most commonly used. Among them: the use of ICT, game techniques, the portfolio method, personality-oriented, information support of the learning process, educational and health-saving technologies, and others.