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Extended High Frequency Audiometry

The Evaluation of The Most Fragile Part of The Ear

Currently, we prefer to perform an extended audiometry instead of the conventional exam that only measures hearing thresholds from 250 to 8000 Hz.

High-frequency audiometry evaluates thresholds for high-pitched sounds, that is, from 9000 to 16000 Hz. This part of the ears is the first to be harmed in several situations where the ear is assaulted. So, this complete evaluation helps us to know the areas that may have been compromised in order to trigger tinnitus. It is also performed with the patient sitting in a soundproof booth, using shell-type headphones connected to the audiometer.

It is also performed with the patient sitting in a soundproof booth, using shell-type headphones connected to the audiometer.

For tinnitus patients who consider that they listen well, it is relatively common to see a pure tone audiometry from 250 to 8000Hz (see Vocal and tonal audiometry: the test everyone should do at any age!) within normal limits, while their high frequency audiometry might show earlier changes in areas that match the sound frequency of tinnitus (see  Acuphenometry).

Hence, we recommend an extended examination, especially when patients report that they have been evaluated by other professionals and “no one discovered anything”.