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…

Read More

When High Noise Levels are NOT the Issue (Part II)

This is a continuation of the previous blog with the same name, but labeled Part I. The setting is the Hurricane Mesa Test Facility (HMTF) located atop Hurricane Mesa, a short drive from St. George, UT. HMTF has a 12,000 ft. test track that is fully capable of handling propulsion velocities exceeding supersonic. It is…

Read More