Hearing Aid Verification Using Functional Gain – Part II

Note:  This is a continuation of a previous blog: Hearing Aid Verification Using Functional Gain – Part I, which was last week’s blog.   Functional Gain in Hearing Aids   Functional Gain (FG) = Aided Threshold minus the Unaided Threshold (FG = A-U). Unaided thresholds are measured to tones presented through the loudspeaker(s). Various frequencies…

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Hearing Aid Verification Using Functional Gain – Part I

A University teaching faculty member asked me recently if I would write a review about the use of functional gain as a method for hearing aid verification. My initial reactions were that I thought we were beyond this with real-ear measurements, and then, that this might be as exciting as watching grass grow, not only…

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