정상인과 난청인에서 다화자 잡음을 이용한 소음환경하에서의  50% 인지 신호대잡음비의 비교

박철호; 이성희; 심현준; 이승주; 윤상원; 이경원

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자료유형: 학술저널

저자정보: 박철호 이성희 심현준 이승주 윤상원 이경원

저널정보: 대한이비인후과학회 대한이비인후-두경부외과학회지 대한이비인후과학회지 두경부외과학 제51권 제10호

발행연도: 2008.1

수록면: 866 - 871 (6page)

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연구주제

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연구배경

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연구방법

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연구결과

초록· 키워드

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The most common complaint of individuals with hearing impairment is the difficulty in understanding speech against background noise. In our previous study, we carried out a speech-in-noise test using multi-talker babble noise and spondee words. In the present study, we compared 50%-signal to noise ratios (SNRs) of hearing-impairment group with that of normal-hearing group, and analyze the effects of age and noise intensity affecting the results. Subjects and Method： Thirty listeners (of which each 10 listeners are in their forties, fifties, and sixties) with normal hearing and thirty listeners (each ten listeners in their forties, fifties, and sixties) with hearing impairment participated. Spondee words and multi-talker babble noise made from recording the voices of 10 males and 10 females were presented by a loudspeaker at a distance of one meter in front of the subject. Fifty percent-SNRs were measured at 50 dB HL, 60 dB HL, 70 dB HL, and 80 dB HL of noise intensity. Results： The mean 50% SNR for normal-hearing listeners in the forties, fifties and sixties of age were -13.4±2.1 dB, -11.5±2.3 dB, and -12.6±2.0 dB, respectively. The mean 50% SNR for hearing-impairment listeners in the forties, fifties and sixties of age were -11.2±3.4 dB, -9.5±3.0 dB, -8.7±2.7 dB, respectively. Hearing-impairment group showed significantly worse results than the normal- hearing group in all ages. Conclusion：These results support that our word-in-noise test using multi-talker babble noise is useful in measuring audibility against background noise for individuals with hearing-impairment. (Korean J Otorhinolaryngol- Head Neck Surg 2008;51:866-71)

#Hearing impairment·Noise·Hearing test·Speech·Signal.

참고문헌 (20)

참고문헌 신청

An LJ / 2002 / The study on developing a test of speech perception in noise / Korean J Audiol 6 : 118 ~ 127

Carhart R / 1970 / Interaction of competing speech signals with hearing losses / Arch Otolaryngol 91 (3) : 273 ~ 279

Cox RM / 1987 / Development of the connected speech test (CST) / Ear Hear 8 (5) : 119 ~ 126

Dirks DD / 1982 / A procedure for quantifying the effects of noise on speech recognition / J Speech Hear Disord 47 (2) : 114 ~ 123

Dubno JR / 1984 / Effects of age and mild hearing loss on speech recognition in noise / J Acoust Soc Am 76 (1) : 87 ~ 96

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