In-situ audiometry using mobile applications There is also a high frequency version of the test which tests frequencies over 8000Hz to 16000Hz which may be employed in special circumstances. On an audiogram an "x" plot represents the softest threshold heard at each specific frequency in the left ear, and an "o" plot represents the softest threshold heard at each specific frequency in the right ear. The result of the test is an audiogram diagram which plots a person's hearing sensitivity at the tested frequencies. The test is conducted in a sound booth using either a pair of foam inserts or supraural headphones connected to an external audiometer. The standard and most common type of hearing test is pure tone audiometry, which measures the air and bone conduction thresholds for each ear in a set of 8 standard frequencies from 250Hz to 8000Hz. Prior to the hearing test, the ears of the patient are usually examined with an otoscope to make sure they are free of wax, that the eardrum is intact, the ears are not infected, and the middle ear is free of fluid (indicating middle ear infection). There are other hearing tests as well, e.g., Weber test and Rinne test. An audiometer is used to determine a person's hearing sensitivity at different frequencies. A hearing health professional conducting an audiometric hearing test in a sound-treated testing boothĪ hearing test provides an evaluation of the sensitivity of a person's sense of hearing and is most often performed by an audiologist using an audiometer.
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