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Audiol > Volume 2(1); 2006 > Article
Audiology 2006;2(1): 28-32.
Published online: June 30, 2006.
doi: http://doi.org/10.21848/audiol.2006.2.1.28
청각장애 특수학교 유·초등부교실의 신호 대 잡음비에 관한 연구
양한석1, 이정학2, 김진숙3
1한림대학교 보건대학원
2한림대학교 의과대학 성심병원 이비인후과학교실
3한림대학교 자연과학대학 언어청각학부
A Study on the Signal-to-Noise Ratio of Classrooms for Toddlers and School-aged Children at Deaf Schools
Han-Suk Yang1, Jung-Hak Lee2, Jin-Sook Kim3
1Department of Audiology, School of Public Health, Hallym University, Chuncheon, Korea
2Department of Otolaryngology, Sacred Heart Hospital, School of Medicine, Hallym University, Pyeongchon, Korea
3Section of Audiology, Hallym University, Chuncheon, Korea
Correspondence  Han-Suk Yang ,Tel: (033) 248-1451, Fax: (033) 248-1454, Email: noisecontrol@hallym.ac.kr
Received: April 21, 2006;  Accepted: May 26, 2006.  Published online: June 30, 2006.
This paper was attempted to measure the S/N, at 15 classrooms of preschools and elementary schools for the deaf children, which are located in Seoul and Inchon. The data were obtained from December, 1999 to March, 2000. The S/N was measured at each distance of 1 m, 2 m and 4 m from the teachers by both dB (A) scale and dBSPL scale with one octave band width from 125 Hz to 8,000 Hz. The results were as follows:1) The S/N at the center frequencies of 500 Hz, 1,000 Hz and 2,000 Hz, important in the recognition of speech, was above +15 dB in the classrooms of 4 schools except one open school. 2) The distance from the teachers and children did not have significant effects on the S/N. 3) The environmental noise around the deaf schools did not give an influence on the S/N of the classrooms. 4) The numerical values of dBSPL scale were almost 10 dB higher than those of dB (A) scale in the low frequency area below 500 Hz.
Key Words: Signal·Noise.
중심단어: 신호· 잡음.
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