대한의용생체공학회:학술대회논문집 (Proceedings of the KOSOMBE Conference)
- 대한의용생체공학회 1995년도 추계학술대회
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- Pages.121-123
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- 1995
디지탈 보청기의 이득보상기법에 대한 연구
Dynamic Loudness Compensation for Digital Hearing Aids
- Kim, Dong-Wook (Biomedical Engineering Research Center Samsung Biomedical Research Institute) ;
- Kim, Won-Ky (Biomedical Engineering Research Center Samsung Biomedical Research Institute)
- 발행 : 1995.11.17
초록
This paper presents a new method which compensates loss of loudness for digital hearing aids. Loudness grows more rapidly in frequency domain with substantial shifts of hearing threshold, so that loud sounds reach the uncomfortable sound level (UCL) at about the same physical stimulus level as with normal hearing. The result is a compression of the available dynamic range of hearing. Many techniques have been developed to compensate for hearing losses. In this paper, we propose a digital hearing aid which uses a single digital filter for reducing distortion and the fuzzy function to calculate gain factors. This function describes how much gain is needed for every frequency to restore loudness perception of a normal ear.
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