Patent ID: 8634567

Claim:
A method of automatically fitting a hearing aid, the method performed by an automatic fitting device including a probe microphone, the method comprising: obtaining an audiogram of a test subject; determining an initial gain for the hearing aid at each frequency band of a plurality of frequency bands, each initial gain based on the audiogram and standardized gain values; determining an initial saturated sound pressure level (SSPL) for the hearing aid at each frequency band of the plurality of frequency bands, each initial SSPL based on the audiogram and standardized SSPL values; setting the hearing aid with the initial gains and the initial SSPLs; generating an external sound while the hearing aid set with the initial gains and the initial SSPLs is worn by the test subject and the probe microphone is positioned in the ear canal of the test subject; measuring amplitude information of sound output by the hearing aid for each frequency band of the plurality of frequency bands with the probe microphone while the external sound is generated; comparing, for each frequency band of the plurality of frequency bands, the amplitude information of the sound output by the hearing aid with amplitude information of the external sound; determining, for each frequency band of the plurality of frequency bands, a corrected gain and a corrected SSPL based on a result of the comparison for the corresponding frequency band; and setting the hearing aid with the corrected gains and the corrected SSPLs.