Real Ear

Real ear measurement (REM, also known as insitu– or probe microphone measurement) is the measurement of sound pressure level in a patient’s ear canal developed when a hearing aid is worn. It is measured with the use of a silicone probe tube inserted in the canal connected to a microphone outside the ear and is done to verify that the hearing aid is providing suitable amplification for a patient’s hearing loss. It is the preferred method of verifying the performance of hearing aids. Used by audiologist and other hearing healthcare practitioners in the process of hearing aid fitting, real ear measures are the most reliable and efficient method for assessing the benefit provided by the amplification. Measurement of the sound level in the ear canal allows the clinician to make informed judgements on audibility of sound in the ear and the effectiveness of hearing aid treatment.

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