A Case for Mid-frequency Amplification?

Most individuals with hearing loss are affected mostly in the high frequencies. And, because consonants–those phonemes (distinctive speech sounds) that are believed to enable humans to differentiate one word from another–are high-frequency sounds, hearing aid fitting formulas universally call for high-frequency amplification. This continues to be a take-off of the old “audiogram fitting” approach (although with less…

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Hearing Aid Power Supply – Body Heat? Part II

Human Body as Future Hearing Aid Power Supply? Last week’s blog introduced the use of alternate energy to power hearing aids, and ended suggesting that perhaps the human body itself could serve as such a source, thereby possibly even eliminating the power cell (battery) altogether.  Of course, such a direction was not suggested as something…

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