Abstract
This study was attempted to evaluate the efficiency of hearing aid use of 69 hearing impaired children in a hard-of-hearing class of four schools in Osaka.
The results were as follows.
a) The factors of acquiring the benefit of wearing hearing aid were:
1) The children who had hearing loss from 60dB to 80dB had the best results.
2) It was necessary to establish a fundamental attitude and ability before the hearing aid.
3) The difference between hearing loss and output to input in 75dB SPL at 1KHz of hearing aid adjusted in the most comfortable listening condition was approximately 30dB in many of subjects.
b) The effects of using hearing aids were:
1) There was a slight tendency to have a clear pronounciation in speaking of children who had high socre in aided ear.
2) It is greatly effective to use hearing aid in daily speech conversation.
3) There was no relation between the auditory effect of hearing aid and the school marks.
