| 摘要 |
<p>PHD. 78-135. The invention provides a method for adapting a hearing aid. First of all a wide-band reference signal is reproduced via a loudspeaker, which signal has a comparatively low sound level, for example 40 to 50 dB. The gain of hearing aid is adjusted so that the person wearing it can just hear this reference signal. Then, in addition to the reference signal, a periodically recurring narrow-band signal is reproduced, which has a duration of at least 70 msecs, and with an interval of at least 150 msecs., and the range of the optimum sound-level of speech is determined for different central frequencies of this narrow-band signal. The range thus determined is compared with the range of optimum sound-level of speech for persons with normal hearing abilities and subsequently the setting of the hearing aid is corrected so that the sound level experienced as a pleasing sound level of speech by the user of the hearing aid falls within the sound-level range which is pleasing to persons with normal hearing abilities. The invention relates to an apparatus for carrying out the method. Compared to known methods for adapting a hearing aid, the method according to the invention is more accurate and yields more reproducible results.</p> |
