Method of and arrangement for adapting a hearing aid

Details Method of and arrangement for adapting a hearing aid Method of and arrangement for adapting a hearing aid

1979-09-24

1981-07-07

Kreitman, Stephen A.

Measuring and testing

Vibration

By mechanical waves

179 1N, A61B 512, H04R 2500

Patent

active

042767814

ABSTRACT:
A method of and apparatus for accurately adjusting a hearing aid. First a wide-band reference signal of relatively low sound level, e.g. 40 to 50 dB, is reproduced via a loudspeaker. The gain of the 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 having a duration of approximately 150 msecs is reproduced 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 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.

REFERENCES:
patent: 3784745 (1974-01-01), Stearns
patent: 3784750 (1974-01-01), Stearns et al.

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