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Automated Auditory Monitoring Using Evoked Potentials and Consumer Headphones

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Auditory Evoked Potentials (AEP) are electrical signals resulting from activity in the auditory system in response to stimuli. The characteristic waveforms can be indicative of cochlea and auditory brainstem function and may change after the onset of tinnitus or hearing threshold shifts, whether permanent or temporary. AEP measurement is currently used by audiologists for hearing assessment in infants and to aid the diagnosis of some diseases. Measurements were made using a variety of consumer headphones and integrated electrodes and compared with a reference audiology system. The results showed the ability to record a consistent response and indicated that AEPs can be reliably measured outside a clinical environment. This could be used to automatically monitor for changes in a user's hearing.

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Permalink: http://www.aes.org/e-lib/browse.cfm?elib=19255

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