Audiometry, Tympanometry, Acoustic Reflex Measurements, Otoacoustic Emission (OAE) tests and Auditory Brainstem Response (ABR/BERA) tests are performed in our newly opened Audiology service at the center of our hospital.
What is Audiometry?
It is a test to determine how well we can hear and the degree of hearing loss. Pure Voice Audiometry, Bone Path Audiometry, Speech Audiometry, Masking are performed in this test.
Pure sound audiometry (air conduction test), with this test, the patient’s hearing degree and the type of hearing loss are determined. It is performed by giving a pure tone from a headset to the ear and measuring this tone in decibels (dB) to the sound it can detect.This measurement is called the threshold. 1000 Hz is the frequency that is most easily perceived by many people.Since the threshold level is most easily achieved at this frequency, the threshold test usually starts at 1000 Hz.The test is started at 1000 Hz on the audiometer device.Stimuli are sent to the patient at certain frequencies at 1000 Hz, 2000 Hz, 4000 Hz, 6000 Hz, 8000 Hz, 500 Hz, 250 Hz and 125 Hz, respectively, and responses are recorded. According to the curves formed by the results obtained, the patient is diagnosed. Determination of the threshold level that the patient can hear with pure sounds given through headphones from the external ear canal is generally evaluated between 125-8000 Hz in routine conventional measurements. Dec. The thresholds are recorded in a graph called an audiogram.
Bone path audiometry (Bone conduction test) thresholds are determined by placing them on Decussation called mastoid behind the ear and measuring frequencies between 250-4000.
Speech audiometry (Speech test) is a measurement of a patient’s ability to hear and understand speech.
Masking noise, on the other hand, is sometimes a test performed by sending a sound resembling the sound of wind to the untested ear to prevent incorrect measurement of the tested ear.