Knee, Typewriter, and Hearing Aid

Prior to the holidays, this post offered a suggestion that a much larger market exists for amplification products (aka hearing aids) if they are viewed as a consumer product rather than as a product identified only with hearing loss. The number of “consumers” greatly exceeds the number of “patients” – normally, a critical factor in…

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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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