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Audiometers and tympanometers are used for assessing and evaluating mild, moderate, and severe hearing loss of patients. These medical instruments are used commonly by ear specialists in hospitals, ENT (ear, nose, and throat) clinics, and audiology centers. They are composed by a main hardware unit with headphones connected and a feedback button for test patients.
Commonly, audiometers use the unit of hearing measurement in decibels. Subjects are screened and assessed by an examiner. The examiner calculates the hearing condition of the subject by choosing different sounds in various rates of conductive mechanisms exposed to the subject. The subject will press the feedback button if he or she can hear the sound. Otherwise, he or she will not press the button if the sound cannot be heard. The results are frequently shown in line graphs for visual representation of results in most computerized audiometers.
There are PC-based and software audiometers that are available on the market today, but PC-based clinical types are more expensive than standard audiometers. They may provide you a kit that helps clinicians or researchers to examine hearing loss.
Audiometers must be regularly calibrated to guarantee accurate readings. The mechanism of sounds from the audiometer must be exactly equal to the actual stimulus exposed to the test patient.
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