ヒダカ　ヒロシ   HIDAKA HIROSHI   日高　浩史    所属   関西医科大学  耳鼻咽喉科・頭頸部外科学講座    職種   准教授
論文種別	原著(症例報告除く)
言語種別	英語
査読の有無	査読あり
表題	Apparent change of masking functions with compression-type digital hearing aid.
掲載誌名	正式名：Scandinavian audiology 略　 称：Scand Audiol ISSNコード：01050397
掲載区分	国外
巻・号・頁	29(3),pp.159-169
総ページ数	11
著者・共著者	Sasaki N, Kawase T, Hidaka H, Ogura M, Takasaka T, Ozawa K, Suzuki Y, Sone T.
発行年月	2000/03
概要	Signal perception ability under conditions of a narrow band masker in subjects with hearing aids was examined using a theoretical model of the auditory nerve fibre (ANF) with a deteriorated tuning curve in addition to measurements of actual masking function in subjects wearing hearing aids. The results obtained indicate that the apparent masking function could be affected by the frequency-gain character as well as by the degree of compression. Usually, the compression-type of amplification with flat and/or high-frequency weighted characteristics improves not only the apparent thresholds but also the apparent masked thresholds under conditions of lower frequency masking. On the other hand, a low-frequency masker amplified by a higher gain with low-frequency weighted amplification could cause larger upward-masking effects on the signal perception of the higher frequency signal in some conditions. The present study may contribute to our understanding of the underlying mechanisms of the effects of different amplification by the aid.
researchmap用URL	https://researchmap.jp/hirohiro1112/