[Digital vs. analog hearing aids for children. Is there a method for making an objective comparison possible?].
Until now, the assumed benefits of digital hearing aids are reflected only in subjective descriptions by patients with hearing aids, but cannot be documented adequately by routine diagnostic methods. Seventeen schoolchildren with moderate severe bilateral symmetrical sensorineural hearing loss were examined in a double-blinded crossover study. Differences in performance between a fully digital hearing aid (DigiFocus compact/Oticon) and an analogous digitally programmable two-channel hearing aid were evaluated. Of the 17 children, 13 choose the digital and 4 the analogous hearing aid. In contrast to the clear subjective preferences for the fully digital hearing aid, we could not obtain any significant results with routine diagnostic methods. Using the "virtual hearing aid," a subjective comparison and speech recognition performance task yielded significant differences. The virtual hearing aid proved to be suitable for a direct comparison of different hearing aids and can be used for double-blind testing in a pediatric population.
Prinz
I
I
Klinik für Audiologie und Phoniatrie, Universitätsklinikum Benjamin Franklin, FU Berlin, Fabeckstrasse, 14195 Berlin.
Nubel
K
K
Gross
M
M
D002648:Child; D003201:Computers; D003202:Computers, Analog; D018592:Cross-Over Studies; D003638:Deafness / Q000534:rehabilitation*; D004311:Double-Blind Method; D005260:Female; D006310:Hearing Aids; D006319:Hearing Loss, Sensorineural / Q000534:rehabilitation*; D006801:Humans; D008297:Male; D008838:Microcomputers; D009146:Music; D010470:Perceptual Masking; D012984:Software; D013069:Speech Reception Threshold Test