<unk>  is the<unk>  of sound pressure level in a patient's<unk>  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<unk>  and is done to verify that the hearing aid is providing suitable amplification for a patient's hearing loss. The American Speech–Language–Hearing Association (ASHA) and American Academy of Audiology (AAA) recommend<unk> <unk>  measures as the preferred method of verifying the performance of hearing aids. Used by audiologists and other hearing healthcare practitioners in the process of hearing aid fitting,<unk> <unk>  measures are the most reliable and efficient method for assessing the benefit provided by the amplification.<unk>  of the sound level in the<unk>  canal allows the clinician to make informed judgements on audibility of sound in the<unk>  and the effectiveness of hearing aid treatment. The use of<unk>  to assess the performance of hearing aids is covered in the ANSI specification Methods of<unk>  of<unk> -Ear Performance Characteristics of Hearing Aids, ANSI S3.46-2013 (a revision of ANSI S3.46-1997).
Real ear measurement
Computational audiology
Thermoacoustic imaging
Vibroacoustic stimulation
Neurological pupil index
Eye chart
Bone conduction auditory brainstem response
Tympanometry