The AuDX Pro Otoacoustic Emissions Measurement System produces controlled acoustic signals in the earcanal and measures the resulting evoked otoacoustic emissions (OAEs) that are generated by the outer hair cells of the inner ear as a result of normal peripheral hearing processes. The AuDX Pro device performs both transient evoked otoacoustic emissions (TEOAE) and distortion product otoacoustic emissions (DPOAE) tests that can be utilized in hearing screening and diagnostic test environments.
An electroacoustic instrument designed to evaluate the activity of the auditory pathway of the brain in response to an acoustic signal [auditory brainstem response (ABR)] it provides at the ear (e.g., clicks delivered through an earphone), without need of patient cooperation. The signal, detected via the device's scalp electrodes and possibly a reference electrode on the ear lobe, is measured using computer averaging and signal processing techniques. This device is typically used to assess the function of the auditory pathways and to differentiate coma due to metabolic factors from structural damage.
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