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Audiol > Volume 5(1); 2009 > Article
Audiology 2009;5(1): 32-35.
Published online: December 31, 2009.
doi: http://doi.org/10.21848/audiol.2009.5.1.32
한국어음청각검사를 위한 기준음압레벨에 대한 고찰
한희경1, 조수진2, 이경원3, 이정학3
1한림대학교 대학원 언어청각학협동과정
2대불대학교 언어치료청각학과
3한림국제대학원대학교 청각학과
A Study on the Reference Sound Pressure Level for Korean Speech Audiometry
Heekyung Han1, Soojin Cho2, Kyoungwon Lee3, JungHak Lee3
1Inter-Disciplinary Program of Speech Pathology & Audiology, Graduate School, Hallym University, Chuncheon, Korea
2Department of Speech Pathology & Audiology, Daebul University, Yeongam, Korea
3Department of Audiology, Hallym Institute of Advanced International Studies, Seoul, Korea
Correspondence  JungHak Lee ,Tel: (02) 2051-4950, Fax: (02) 3453-1668, Email: leejh@hallym.ac.kr
Received: October 31, 2009;  Accepted: November 19, 2009.  Published online: December 31, 2009.
ABSTRACT
According to the international regulations for the standards, the reference sound pressure level (RSPL) for speech audiometry (SA) is based on the reference speech recognition threshold level (RSRTL). The RSRTL for Korean speech audiometry is not established yet. Thus, the purpose of this study was to obtain basic data for calculating the RSRTL using Korean speech sounds. Subjects consisted of 42 adults with normal hearing sensitivity. Puretone thresholds (PTs) were obtained in 2 dB steps at each octave band. Korean 70 bisyllabic words were used to measure speech recognition thresholds (SRTs). The SRT was defined as the level at 50% of correct responses based on the logistic regression analysis for the results of the psychometric function test. The test was performed from -6 dB HL up to the level at or above 95% of correct responses in 2 dB steps. Results showed that the mean SRT was 26.59 dB SPL with the standard deviation of 4.25 dB, which was 6.59 dB greater than the RSRTL of English speech sounds. These results suggest that the RSRTL be recalculated for Korean speech audiometry for each type of headphone.
Key Words: Reference sound pressure level (RSPL)·Reference speech recognition threshold level (RSRTL)·Korean speech audiometry (KSA).
중심단어: 기준음압레벨· 기준어음인지역치레벨· 어음청각검사.
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