Even though many research findings have found that age-related changes do not differ too much between DPOAES and TEOAES, I would use DPOAEs to test the adult population because of other factors, such as comfort of presentation level, frequency specific information, and more manual control options for the examiner. First, DPOAEs are presented at a moderate intensity level (70dB) compared to TEOAEs which are presented at a higher presentation level (78-80dB). Furthermore, to check for test-rest reliability (must be repeatable) the examiner must complete multiple recordings. DPOAEs are presented at a softer presentation stimulus, hence, completing multiple recordings would decrease the probability of causing any listening discomfort to the patient,
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Due to the stimulus type, the spectrum elicits frequency resolution but not frequency specificity. Therefore, when testing certain patients who have losses such as a rising loss, his/her TEOAE results may be a “pass status” because the frequencies within the spectrum for TEOAEs (higher frequencies) are technically normal. Additionally, unlike TEOAEs, audiologist have more control over what DPOAE protocol is being used or what frequency area is most crucial for testing regarding the patient’s history. For example, a patient that is suspected to have endolymphatic hydrops of Meniere’s disease could have an emphasis on lower frequency DPOAE measurements because that is the typical area of hearing loss for that disease. While TEOAEs only represent an abrupt click (high frequencies), which could yet again miss the hearing loss, resulting in the associated disease being overlooked. To get the most accurate results in a diagnostic setting, it would be ideal to use both type of OAE emissions for every patient, but only if time
Due to the stimulus type, the spectrum elicits frequency resolution but not frequency specificity. Therefore, when testing certain patients who have losses such as a rising loss, his/her TEOAE results may be a “pass status” because the frequencies within the spectrum for TEOAEs (higher frequencies) are technically normal. Additionally, unlike TEOAEs, audiologist have more control over what DPOAE protocol is being used or what frequency area is most crucial for testing regarding the patient’s history. For example, a patient that is suspected to have endolymphatic hydrops of Meniere’s disease could have an emphasis on lower frequency DPOAE measurements because that is the typical area of hearing loss for that disease. While TEOAEs only represent an abrupt click (high frequencies), which could yet again miss the hearing loss, resulting in the associated disease being overlooked. To get the most accurate results in a diagnostic setting, it would be ideal to use both type of OAE emissions for every patient, but only if time