[논문]말소리장애 아동의 말명료도와 음향학적 측정치 간 상관관계

강은영

doi:10.15268/ksim.2018.6.4.191

말소리장애 아동의 말명료도와 음향학적 측정치 간 상관관계
The Correlation between Speech Intelligibility and Acoustic Measurements in Children with Speech Sound Disorders 원문보기

Journal of the Korean Society of Integrative Medicine = 대한통합의학회지, v.6 no.4, 2018년, pp.191 - 206

Abstract ▼ AI-Helper

Purpose : This study investigated the correlation between speech intelligibility and acoustic measurements of speech sounds produced by the children with speech sound disorders and children without any diagnosed speech sound disorder. Methods : A total of 60 children with and without speech sound disorders were the subjects of this study. Speech samples were obtained by having the subjects? speak meaningful words. Acoustic measurements were analyzed on a spectrogram using the Multi-speech 3700 program. Speech intelligibility was determined according to a listener's perceptual judgment. Results : Children with speech sound disorders had significantly lower speech intelligibility than those without speech sound disorders. The intensity of the vowel /u/, the duration of the vowel /${\omega}$/, and the second formant of the vowel /${\omega}$/ were significantly different between both groups. There was no difference in voice onset time between the groups. There was a correlation between acoustic measurements and speech intelligibility. Conclusion : The results of this study showed that the speech intelligibility of children with speech sound disorders was affected by intensity, word duration, and formant frequency. It is necessary to complement clinical setting results using acoustic measurements in addition to evaluation of speech intelligibility.

주제어

표/그림 (13)

표 Table 1. General characteristics of children.
표 Table 2. Speech sample
그림 Fig 1. The analytic parameters of vowel in word /Epɔle/
그림 Fig 2. The analytic parameters of consonant in word /pata/ and /cokɛ/
표 Table 3. Comparison of pitch and intensity between normal children and children with speech sound disorders
표 Table 4. Comparison of vowel formant between normal children and children with speech sound disorders
표 Table 5. Comparison of vowel duration between normal children and children with speech sound disorders
표 Table 6. Comparison of VOT between normal children and children with speech sound disorders
표 Table 7. Duration of vowel following plosive
표 Table 8. Temporal aspects of affricate
표 Table 9. Duration of vowel following affricate
표 Table 10. Comparison of word duration between normal children and children with speech sound disorders
표 Table 11. Correlation between speech intelligibility and acoustic measurements in children with speech sound disorders

질의응답

핵심어	질문	논문에서 추출한 답변
	조음이란?	조음이란 혀, 입술, 목젖 등 조음기관을 이용하여 말 소리를 생성하는 것을 의미한다. 원활한 의사소통을 하기 위해서는 자신의 생각을 개념화하여 모국어의 언어 규칙에 적합한 언어로 변환하고 말소리 표상과 관련된 말 운동 프로그래밍을 계획하고 구어 근육들의 조화로운 운동 협응으로 말소리가 생성이 된다.
	말소리 장애는 어떻게 분류할 수 있는가?	Shriberg와 Kwiatkowski(1994)는 병인에 따라서 말소리 장애를 원인이 불명확한 말장애, 삼출성 중이염으로 인한 말소리 장애, 발달적 구어 실행증, 심리 발달 문제와 연관 있는 말장애로 분류하였고, 말소리 장애 를 갖고 있는 아동들 중 대략 40-60 % 아동들이 언어 장애를 동반하고 있다고 보고하였다. 국내 말소리 장애 아동의 동반 장애를 조사 연구한 결과, 지적장애가 28.
	말소리 장애 평가방법 중 음향학적 방법은 무엇인가?	음향학적 방법은 음성 분석 장비를 활용하여 대상자의 발성, 공명, 조음을 정량적으로 평가하는 방법으로 기본주파수(Fo), 포먼트(formant), 피치(pitch), 강도 (intensity), 발성개시시간(VOT, Voice onset time), 길이 (duration), 소음 주파수(noise frequency) 등 음향학적 파라미터들을 측정한다. 해부학적 성장과 더불어 발화기제의 성숙을 의미하는 기본주파수는 신체 성장과 연령 의 증가에 따라서 감소하는 경향을 보이고 성별에 따 른 차이를 보인다(Kent & Read, 2002).

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