Just thinking, could the way an optometrist identifies and corrects vision problems also be used to correct hearing problems? Generally speaking, an Optometrist does the following (forget the medical checking, that is another issue):
1st: Vision test to essentially get a base line.
2nd: Has patient look thru lenses and changing them from one lens to another asks the patient is this better or worse?
3rd: Depending on the answer, another lens is used and question repeats itself and continues in this loop until the optometrist knows how much correction is needed to give the patient better vision. Of course depending on the patients vision impairments, the end results will not always be perfect (20/20).
Generally speaking the optometrist is nothing but a living robot. A robot could do the same thing as the optometrist. The rub is that using a robot to flip the lenses would require that the robot be integrated with the lenses selector and the patient’s voice for the yes/no answer. Such a computer aided machine for vision correction would probably be too costly because of the mechanical actions it would be required to perform.
Let us look at a similar model used to correct hearing impairment. It might look like:
1st: The computer obtains the audio hearing data from the patient.
2nd: The computer using the audio data just collected would do a general fitting for the HAs.
3rd: The computer computer would then play audio for the patient asking if their hearing is better or worse.
4th: The answer and type of audio the patient was listening to would be used to determine what if any adjustment should be made to the HAs. The computer would continue in this loop using all the different audio recordings until the patient’s aids were adjusted to give the patient the best hearing they can have given their hearing disability and the limitations of the HAs.
This would pretty much take the audi out of the picture and establish a consistent level for fittings.