Abstract
13 hearing impaired children in special class for hard of hearing were tested audiometory during a year. We found the following results by analysing of speech audiomentory data and hearing aid training.1) Their audiogram nearly were not change, but speech receptive threshold (S. R. T.) and maximum articulation score (MAS) pointed out a little improvement.2) The improvement of speech hearing were not influenced by type of hearing loss.3) Even the ear which had limited dynamic range improved the S. R. T. and M. A. S. by auditory training.4) The confusion of speech words decreased by auditory training. It seemed important of the detail observation of confusion for training.5) The progress of adaptation of hearing aid were improved the speech hearing. There-fore the evaluation of the adaptation of hearing aid is done by the improvement of speech hearing.
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