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J Korean Soc Laryngol Phoniatr Logop > Volume 17(1); 2006 > Article
Journal of The Korean Society of Laryngology, Phoniatrics and Logopedics 2006;17(1): 43-48.
Countertenor 1인의 Modal Register와 Falsetto Register에서의 공기역학적 변화 및 전기성문파형의 변화 연구
남도현, 최성희, 최재남, 최홍식
연세대학교 의과대학 이비인후과학교실 음성언어의학연구소
Analysis of Phonatory Aerodynamic & Electroglottography of a Countertenor
Do-Hyun Nam, Seong-Hee Choi, Jae-Nam Choi, Hong-Shik Choi
Department of Otorhinolaryngology, The institute of Logopedics & Phoniatrics, Yonsei University College of Medicine
Background and Objectives:
Countertenors who can produce higher vocal pitch like female classical singer's voice and use both modal and falsetto register. This study was conducted to study phonatory characteristics between modal and falsetto register of the countertenor.
Materials and Methods:
A male countertenor who had 8 years of experience was examined using a videostroboscopy and his voice was analyzed using aerodynamic measures; fundamental frequency(F0), Mean air flow rate(MFR), intensity(SLP), subglottal air pressure(Psub) with phonatory function analyzer(Nagashima) and acoustic measures; jitter, shimmer, HNR, closed quotient(CQ) using a Electro-glottography(EGG) of Lx. Speech Studio(Laryngoscope, Ltd, UK) and voice range profile of CSL(Kay elemetrics).
In the stroboscopy finding, the longitudinal length of vocal folds was increased at the falsetto register and the upper margin of vocal folds vibrated with incomplete closure of true vocal folds. In aerodynamic analysis, intensity was same at the modal and falsetto register. However, MFR, Psub, MPT were higher at the falsetto register. In the electroglottographic analysis, closed quotient(CQ) at the modal register was high and also much higher at the high-pitch falsetto than at the loud falsetto. In the VRP, intensity was similar though F0 was different between modal and falsetto register.
It implied that countertenor could produce powerful voice quality by increasing of respiratory pressure and respiratory volume though glottal closure was incomplete. In addition, no change of EGG waveform, similar voice range with alto was observed.
KEY WORDS: Counter tenor;Closed quotient;Aerodynamic function;
중심 단어: 카운터테너;성문폐쇄율;공기역학적 기능;
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