Comparison of In-the-Ear and Over-the-Ear Hearing Aid Fittings A custom in-the-ear (ITE) hearing aid fitting was compared to two over-the-ear (OTE) hearing aid fittings for each of 9 subjects with mild to moderately severe hearing losses. Speech intelligibility via the three instruments was compared using the Speech Intelligibility Rating (SIR) test. The relationship between functional gain and coupler ... Reports
Reports  |   November 01, 1986
Comparison of In-the-Ear and Over-the-Ear Hearing Aid Fittings
 
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Article Information
Reports   |   November 01, 1986
Comparison of In-the-Ear and Over-the-Ear Hearing Aid Fittings
Journal of Speech and Hearing Disorders, November 1986, Vol. 51, 362-369. doi:10.1044/jshd.5104.362
History: Received March 12, 1986 , Accepted June 17, 1986
 
Journal of Speech and Hearing Disorders, November 1986, Vol. 51, 362-369. doi:10.1044/jshd.5104.362
History: Received March 12, 1986; Accepted June 17, 1986

A custom in-the-ear (ITE) hearing aid fitting was compared to two over-the-ear (OTE) hearing aid fittings for each of 9 subjects with mild to moderately severe hearing losses. Speech intelligibility via the three instruments was compared using the Speech Intelligibility Rating (SIR) test. The relationship between functional gain and coupler gain was compared for the ITE and the higher rated OTE instruments. The difference in input received at the microphone locations of the two types of hearing aids was measured for 10 different subjects and compared to the functional gain data. It was concluded that (a) for persons with mild to moderately severe hearing losses, appropriately adjusted custom ITE fittings typically yield speech intelligibility that is equal to the better OTE fitting identified in a comparative evaluation; and (b) gain prescriptions for ITE hearing aids should be adjusted to account for the high-frequency emphasis associated with in-the-concha microphone placement.

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