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      • 갑상선 절제술 전후 음성치료

        황연신(Yeon Shin Hwang),선동일(Dong Il Sun) 대한신경모니터링학회 2023 Journal of Neuromonitoring & Neurophysiology Vol.3 No.1

        Many patients undergone thyroidectomy show subjective voice changes, neck and throat discomfort, lower pitched voice & high pitch difficulty, and hoarseness. These patients need preoperative and postoperative voice therapy. Using TVSQ and PSVT, subjective voice problems and the need for voice therapy were recognized. Before surgery, it is necessary to alleviate psychological difficulties through voice hygiene education and counseling. After surgery, muscle relaxation exercise and massage of the larynx and neck & shoulder, laughing approach, humming, and SOVTE(lip trill) can induce high-pitched voice and reduce the glottal gap.

      • KCI등재

        실용음악 전공 학생들의 발성치료 전후 성대 및 음성 특성 비교

        황연신,심미란,김철준,최용석,김상연,최찬호,선동일,Hwang, Yeon Shin,Shim, Mi Ran,Kim, Chul Jun,Choi, Yong Suk,Kim, Sang Yeon,Choi, Chan Ho,Sun, Dong Il 대한후두음성언어의학회 2016 대한후두음성언어의학회지 Vol.27 No.2

        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.

      • KCI등재

        활창과 허밍을 이용한 음성치료가 성문틈 환자의 음성 개선에 미치는 효과

        정대용,심미란,황연신,김근전,선동일,Jung, Dae-Yong,Shim, Mi-Ran,Hwang, Yeon-Shin,Kim, Geun-Jeon,Sun, Dong-Il 대한후두음성언어의학회 2021 대한후두음성언어의학회지 Vol.32 No.2

        Background and Objectives Therapies have been reported to treat the glottal gap previously. However, these voice therapies showed the limits because many techniques focused only on one among breathing, resonance and phonation. In addition patients often have difficulties visiting hospital frequently. 'Gliding and humming' is vocal training technique that readjusts total vocal patterns such as breathing, resonance and phonation. This technique can be easily applied during short term sessions. The purpose of this study is to evaluate the efficiency of voice therapy with 'gliding and humming' for patients with glottic gap during short-term treatment sessions. Materials and Method Twenty-three patients with glottal gap were selected. Of all patients, 14 patients had sulcus vocalis and 12 patients had muscle tension dysphonia (MTD). Voice therapies were performed 1.9 sessions in average. GRBAS, jitter, shimmer, noise to harmonic ratio, semitone range, closed quotient_vowel and maximum phonation time were compared before and after the therapies. In addition, changes of glottal gap and MTD severity were evaluated. Results Statistically significant improvement was observed. MTD improvement was observed only among the patients with glottal gap improvement. Also sulcus vocalis group showed the statistically significant improvement. Conclusion 'Gliding and humming' was effective to the patients with glottic gap and sulcus vocalis. Also, among patients who have both glottic gap and MTD, the data suggests that voice therapy for glottic gap also makes improvement in MTD.

      • 몽골 전통 발성 흐미의 발성 방법 분석에 대한 사례연구

        남도현(Do Hyun Nam),백재연(Jae Yeon Paik),황연신(Yoen-Shin Hwang),최홍식(Hong-Shik Choi) 한국음성학회 2008 음성과학 Vol.15 No.3

        The goal of this study was to investigate acoustic and physiologic characteristics of two phonation types of ‘Khoomei’ which is a traditional singing style of people who live around the Altai mountains or Mongolia region. It can be produced two pitches simultaneously - high melody pitch can be perceived along with a low drone pitch. Sygyt and kargyraa styles are the most popular and identifiable styles and they can be recognized as the different sounds depending on the method of voice production. Two trained Mongolians participated and have used at least 5 - 6 years. The characteristics of this voice production were measured by using flexible fiberscope, Stroboscopy, Lx Speech studio, Spead, and Doctor Speech. In Sygyt style, very high vocal fold closure (71.50%) with both true and false vocal folds contact and strong breathing support was observed. They also showed that tongue height and harmonics were increased (around 10dB) with resonance cavity movement. In contrast, it was found that Kargyraa sound had very low pitch with relaxed stomach, less laryngeal tension and lower vocal fold contact (69.50%) than hard Sygyt style sound without raising the tongue during phonation. ‘Khoomei’ phonation can be made by strong contact of both true and false vocal folds and by increasing the harmonics as well.

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