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J Korean Soc Laryngol Phoniatr Logop > Volume 8(1); 1997 > Article
Journal of The Korean Society of Laryngology, Phoniatrics and Logopedics 1997;8(1): 5-11.
발성의 강도와 주파수 변화에 따른 성대 움직임의 정량적 분석
Quantitative Analysis of Glottal Cycles According to Frequency and Intensity Variations in Normal Speakers
Young-Ik Son, Kyungah Lee, Jun-Sun Ryu, Chung-Hwan Baek
Department of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Sungkyunkwan University, Samsung Medical Center
To set up an objective basis for the evaluation of the stroboscopic findings, video-strobolaryngoscopic images of vocal fold vibration in 5 female and 5 male normal speakers were analyzed using an image analysis computer program called KSIP(Kay Storoboscopy Image Processing, Kay Elemetrics Corp., NJ, USA). Four consecutive vibratory cycles were compared in comfortable, louder, high-pitched /ee/ phonation for every subject. findings mostly replicated earlier studies including glottal chinks which were observed in most female speakers throughout the cycles and clear distinction between female and male speakers in their vibratory patterns as well as intensity and frequency-re-lated differences. However, there were some findings incompatible with those from previous studies which may be attributable to technical problems. This study may provide an objective basis of the stroboscopic findings such as image shape, amplitude, area, and their changes according to frequency and intensity variations. We anticipate that funker study with larger samples ran provide an objective criteria for normal vibratory characteristics of the laryngostro-boscopic findings.
중심 단어: 비디오스트로보스코피;정량화;주파수;강도;
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