Abstract
The effects of frequency response of hearing aids on speech discrimination scores were studied in 16 normally hearing adults. Sppech discrimination tests were carried out under the conditions of 5 kinds of low-frequency cut-off slopes with 4 high-frequency cut-off points. The other conditions used in this study were 3 intensity levels with and without noise. The results of the speech discrimination tests were analysed mainly from a viewpoint of the effects of low-frequency cut-off slopes on the discrimination scores for consonants. The results of these experiments may provide useful information for hearing aid fitting especially in the patients with conductive hearing loss.
