Dyrlund O
Technical-Audiological Department, Fredericiaskolen, Denmark.
Scand Audiol. 1988;17(4):201-5. doi: 10.3109/01050398809070705.
A significant improvement in auditory-visual speech discrimination has been established for a group of profoundly deaf children with hearing losses in the range from 85 to 120 dB HL (pure tone average (500, 1,000, 2,000 Hz] by increasing the low frequency hearing aid gain by approximately 10 dB and reducing the high frequency gain by approximately the same magnitude. The improvements were concentrated in the hearing loss range from 95 to 115 dB HL. A tendency for improvement in auditory discrimination was indicated as well.
通过将低频助听器增益提高约10 dB，并将高频增益降低大致相同的幅度，已经证实一组听力损失在85至120 dB HL（纯音平均听阈（500、1000、2000 Hz）范围内的极重度聋儿在视听言语辨别方面有显著改善。这些改善集中在95至115 dB HL的听力损失范围内。同时也显示出听觉辨别能力有改善的趋势。
