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J Korean Soc Laryngol Phoniatr Logop > Volume 15(2); 2004 > Article
Journal of The Korean Society of Laryngology, Phoniatrics and Logopedics 2004;15(2): 133-140.
전기성문파형검사를 이용한 모음과 공명 자음의 발성특성
최성희, 남도현, 임재열, 임성은, 최홍식
연세대학교 의과대학 이비인후과학교실, 음성언어의학연구소
Phonatory Caracteristics of Vwels and Resonant Consonants using the Electroglottography
Seong-Hee Choi, Do-Hyun Nam, Jae-Yol Lim, Sung-Eun Lim, Hong-Shik Choi
Department of Otorhinolaryngology, The Institute of Logopedics & Phoniatrics, Yonsei University College of Medicine
Background and Objectives
: Vowels and resonant including nasals and liquid are produced with vocal folds vibration have been used for voice therapy of hyperadduction patients. This study was conducted to investigate phonatory characteristics of vowels and resonant consonants through the EGG measures from Lx. Speech studio (Laryngograph Ltd, UK).
Materials and Method
: 7 male adults produced sustained vowel /a/, /i/, /u/, nasals /m/, /n/, /${eta}$/and liquid /I/ and read the sentences (1nasals-liquid sentence, 1 non-nasals-liquid sentence) and tongue-tip trill and humming. Fx(Hz), Ox(%) were obtained of vowels, nasals, liquid and each of the posterior vowel /a/ of /ma/, /na/, /la/, /ha/ with same F0(around F#165Hz) and amplitude (75${pm}$5db). And also DFx(Hz), DQx(%), CFx(%) and CAx(%) were obtained from reading two kinds of sentences.
: Qx(%) was the highest in /u/ of vowels, and nasal/n/ of the resonant consonants and nasals-liquid sentence was higher Qx than non-nasals-liquid sentence but significant differences were not found. Qx(%) of the posterior vowel /a/ of nasal consonants/n/ was higher than in the isolated vowel/a/ and other posterior vowel of resonant consonants and fricatives /h/. Regularity or periodicity and higher Qx were observed in the nasals-liquid sentence than non-nasals-liquid sentence in graphs of QxFx & CFx produced by Quantiative analysis. In the nasalance score, /u/vowel was significant higher among the vowels and /I/ liquid was significant lower among the resonant consonants and nasals-liquid sentence is higher than non-nasals -liquid sentence. CQ(%) was not significantly correlated with nasalance(%).
: These findings might signify resonant phonation was not correlated with nasalance.
KEY WORDS: Vowels;Resonant consonants;CQ;Nasalance;
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