검사어의 모음 환경과 길이 및 연령에 따른 비음치

신일산(Shin, Il San),하승희(Ha, Seunghee) 한국음성학회 2016 말소리와 음성과학 Vol.8 No.3

The Nasometer is most commonly used to assess the presence and degree of resonance problems in clinical settings and it provides nasalance scores to identify the acoustic correlates of nasality. Nasalance scores are influenced by factors related to speakers and speech stimuli. This study aims to examine the effect of vowel context and length of stimuli and age on nasalance scores. The participants were 20 adults and 45 children ranging in age from 3 to 5 years. The stimuli consisted of 12 sentences containing no nasal consonants. The stimuli in the three vowel contexts (low, high, and mixed) consisted of 4, 8, 16, and 31-syllable long sentences. Speakers were asked to repeat each stimulus after examiner. The results indicated significant effects of vowel contexts and stimulus length on nasalance scores. The nasalance scores for the high vowel contexts were significantly higher than those for the mixed and low vowel contexts. The nasalance scores for the mixed vowel contexts were significantly higher than those for the low vowel contexts. Speakers had higher nasalance scores for 4-syllable long sentences and 31-syllable long sentences than for 16-syllable long sentences. The effect of age on nasalance scores was not significant. The results of the study suggest that the vowel context and length of speech stimuli should be carefully considered when interpreting the nasalance scores.

휴대용 비음측정기의 개발 및 임상적 유용성

이미소(Mi So Lee),박희준(Hee June Park),김화수(Wha Soo Kim) 한국언어치료학회 2016 한국언어치료학회 학술발표대회 논문집 Vol.2016 No.12

Purpose: Nasometry is useful diagnostic instrument for measure the nasalance score with resonance disorders. Existing Nasometry advertised in the country are the Nasometer Ⅱ and the NasalView. Two instruments have disadvantage such as high price, difficulty movement and wearing the headset. This study aims development of a Portable Nasometry as well as research on the clinical effectiveness of Portable Nasometry. Methods: The study subjects are composed of 30 general female adults, 5 general children and 5 cleft palate diagnosed children. First, nasalance scores of the newly developed Portable Nasometry and the existing testing device Nasometer Ⅱ are compared on the general adults to examine the validity of the Portable Nasometry’s nasalance. Next, nasalance scoeres of the general children and the cleft palate diagnosed children are compared by using the Portable Nasometry to check if the nasalance value from the Portable Nasometry has a clinical meaning for hypernasality diagnoses. Results: On the general adults, the nasalance scores of Portable Nasometry show statistically higher values than that of the nasalance scores of Nasometer Ⅱ. And, the analysis on the interrelation between the two nasalance values shows a statistically strong interrelation between the two values. Second, the result of comparison on the nasalance scores between the general and the cleft palate diagnosed children shows significantly higher nasalance measured from the cleft palate diagnosed children. Conclusions: Based on such study results, the Portable Nasometry is shown to have valid effectiveness as a diagnostic device. Therefore, the portable device is anticipated to have higher usability in clinics, schools, speech-language rehabilitation centers and households.

부비동 내시경수술 후 비음도 변화

동헌종,김선일,권중근,윤영선,강수미,추광철 대한이비인후과학회 1999 대한이비인후과학회지 두경부외과학 Vol.42 No.7

전기성문파형검사를 이용한 모음과 공명 자음의 발성특성

최성희,남도현,임재열,임성은,최홍식,Choi, Seong-Hee,Nam, Do-Hyun,Lim, Jae-Yol,Lim, Sung-Eun,Choi, Hong-Shik 대한후두음성언어의학회 2004 대한후두음성언어의학회지 Vol.15 No.2

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. Results : 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(%). Conclusion : These findings might signify resonant phonation was not correlated with nasalance.

심도 청각장애 아동의 비성도 및 강도

최은아(Eunah Choi),박한상(Hansang Park),성철재(Cheol-jae Seong) 사단법인 한국언어학회 2009 언어학 Vol.0 No.55

This study investigates the differences in nasalance across handicap, gender, and vowels for the group of profound hearing-impaired children, as well as the correlation between nasal energy and oral energy which are used to compute nasalance. Three groups of children were recruited for this study: 18 children with cochlear implants(CI), 18 children with hearing aids(HA), and 18 children with normal hearing(NH) as a control group. The subjects were asked to read 7 Korean vowels(/α, Λ, o, u, ω, i, ε/). Results showed that there is a significant difference in nasalance across handicap, gender, and vowels. In particular, CI group has a significantly higher nasalance than NH or HA, and HA group has a significantly lower nasalance than NH. And there is a significant positive correlation between nasal energy and oral energy for the normal hearing group.

인공와우 이식 아동과 건청 아동의 공명 특성 비교

채문철,최철희,최성희 한국청각언어재활학회 2017 Audiology and Speech Research Vol.13 No.4

Purpose: The present study examined the nasalance (%) and resonance characteristics in children with normal hearing (NH) and children with cochlear implants (CI) using Nasometer II 6564 (KAY Elemetrics Corp.). Methods: Twenty NH and twenty CI participated in this study. Of twenty children with CI, ten (CI-B) had the CI surgery before three years old and the other ten had after three years old (CI-A). Results: For nasalance of vowels, significantly higher nasalance scores in CI than NH and vowel /i/ was significantly higher than vowel /u/ and /a/. However, no significant differences were found in CI-B and CI-A. Likewise, for oral-sound sentences, significantly higher nasalance scores were observed in CI than NH whereas no difference between CI-B and CI-A. For nasal and nasal-sound sentences, there were no significant differences between NH and CI, and between CI-B and CI-A although lower nasalance scores were found in CI. Generally, CI showed seldom normal resonance (10%) and most of CI demonstrate deviant resonance patterns (90%). Hypernasality was typical resonance pattern, followed by hyponasality, mixed nasality, and cul-de-sac resonance regardless of age of implantation in CI. Conclusion: Although hearing improves following CI, most children with CI demonstrated still abnormal resonance patterns in comparison with NH, which may affect normal speech production. In addition, normal resonance was seldom observed regardless of CI surgery period. Therefore, auditory rehabilitation for resonance was needed after CI for normal speech production.

휴대용 비음측정기의 개발 및 임상 적용을 위한 기초연구

이미소(Mi So Lee),박희준(Hee June Park),김화수(Wha Soo Kim) 한국언어치료학회 2017 言語治療硏究 Vol.26 No.3

Purpose: This study aimed at developing a portable Nasometer as well as studying the clinical effectiveness of a portable Nasometer. Methods: The study subjects were composed of 30 normal female adults, 5 normal children and 5 children diagnosed with cleft palate. First, nasalances of the newly developed portable Nasometer and the existing testing device Nasometer were compared on the normal adults to examine the validity of the portable nasometer’s nasalance. Next, nasalances of the normal children and the children diagnosed with cleft palate were compared by using the portable Nasometer to check if the nasalances value from the portable Nasometer has a clinical meaning for hypernasality diagnoses. Results: First, in the normal adults, the nasalances of the portable Nasometer showed statistically higher values than that of the nasalances of Nasometer . In addition, the analysis on the interrelation between the two nasalances values showed a statistically significant interrelation between the two values. Therefore, it was found that, if standard values are established, the portable Nasometer is clinically valid to use replacing the existing testing device Nasometer . Second, the result of comparing the nasalances between the normal and the children diagnosed with cleft palate showed significantly higher nasalances measured from the children diagnosed with cleft palate. Conclusions: The nasalances of the portable Nasometer showed a strong interrelation with that of the existing testing device. Also, the significantly higher measurement of nasal noise in the children diagnosed with cleft palate than in the normal children suggests that the portable device is valuable for diagnoses. Therefore, the portable device is anticipated to have higher usability in clinics, schools, language treatment centers, and households.

정상 소아의 편도 형태에 따른 비음도에 관한 연구

김성일,조상기,고승오,신효근 대한구순구개열학회 2000 대한구순구개열학회지 Vol.3 No.2

Assessment of speech nasality provides important information for the treatment of velopharyngeal incompetence. The perceptual judgement of nasality is still used in assessment of velopharyngeal incompetence, but it should not be the sole criterion for speech nasality. Objective procedures may be used to assess velopharyngeal function, in examples nasometer, aerodynamics, x-ray, electromyography, nasoendoscopy and videofluoroscopy etc. The aim of this study was to obtain comprehensive nasalance data for the Korean children, aged 7 years and to investigate any tonsil differances within that age group. The results were as follow : The nasalance of the children in respect of the tonsil was higher in grade III than grade I in vowels (/i/, /u/, /wi/ ) , plosives ( /p /, /t /, /k / ), affricatives ( /c / ) and fricatives (/s/, /∫/). (p <0.05)

구개열 환자 언어의 음성언어의학적 특징 연구

박혜숙,최홍식,김현기 대한후두음성언어의학회 2002 대한후두음성언어의학회지 Vol.13 No.2

Speech characteristics of patients with cleft palates are resonance disorders, articulatory disorders and voice disorders. The purpose of this study is to find the acoustic, physiological and articulatory characteristics of cleft palate speakers. Thirteen control groups and 3 cleft palate patients participated in this experiment. Test words were composed of simple vowels and consonants imbedded in low vowel /a/, /p 'ap'i/ and /sasi/ according to the evaluation experiments. CSL, Video fluoroscopy, Fiberscope and Nasometer were used to analyze VOT, vowel formants, profiles of articulator, VP port images and nasalance. The results are as follows : (1) The nasalance of cleft palate patients in the high vowel /i/, stop sounds and fricative sounds were 60%, 34.8% and 44.1%, respectively. These values were higher than those of the control group. (2) Posterior articulatory movements /k'a/ in patients with cleft palates showed backward movement in comparison with the control group on Video Fluoroscopic images and palatograms. These results suggested that patients with cleft palate have the compensatory oral sounds to close the VP port. (3) The VOT in patients with cleft palates was longer than that of the control group.

인종적 차이에 따른 비음도 변화 - 미국 원어민과 한국인 대학생을 비교 대상으로

김현기,이승로,최은명,조우영 대한구순구개열학회 2010 대한구순구개열학회지 Vol.13 No.2

Nasalance is used to evaluate the velopharyngeal incompetence in clinical diagnosis using Nasometer. The aim of this study is to find the nasalance differences between English native speakers and Korean speakers by measuring the nasalance of Oral and Nasal sentences. 20 Americans and 20 Korean students participate to the experimentation. The results are as follows: (1) The nasalance of females for Oral and Nasal sentences is higher than that of males for both native and Korean speakers. (2) The nasalance of Oral sentences in Korean men and females is higher than that of Oral sentences in American men and females, however, the nasalance of Nasal sentences in American men and females is higher than that of Nasal sentences in Korean men and females. (3) The nasalance of stop consonants /p, t, k/ in Korean men and females is higher than that of consonants in American men and females. (4) The nasalance of nasal consonants /m, n, ?/ in American men and females is higher than that of consonants in Korean men and females.