한국어음청각검사를 위한 기준음압레벨에 대한 고찰
A Study on the Reference Sound Pressure Level for Korean Speech Audiometry
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참고문헌
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초록
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.
참고문헌 (12)
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