An audiometry exam (or hearing test) is a subjective test to evaluate each ear’s hearing threshold separately. The test is painless, it doesn’t cause discomfort or entail any risks, and requires active patient participation.
However, if the test is not performed correctly, it can produce unreliable results. Here at the José Luis Domínguez Hearing Centre we have state-of-the-art hearing measurement technology to ensure that the test is carried out properly.
The audiometry exam is totally free of charge and without obligation.
To perform it, a device called an audiometer is used that links pitch frequencies (Hz) and intensity (dB).
Before the test, we review the patient’s medical history to ensure a detailed diagnosis. We also perform an otoscopy to examine the outer ear canal and the tympanic membrane (eardrum).
Hearing thresholds are measured by both air conduction and bone conduction. These preliminary tonal tests help determine the person’s degree and type of hearing loss. We know that the audible frequency range perceived by humans is from 20 Hz to 20,000 Hz. A hearing threshold of 250 Hz to 8,000 Hz to 25 dB or less is considered normal.
After performing the hearing test we check if hearing aids need to be fitted. First, we test the patient’s hearing level and the likelihood that hearing aids would be efficient
If thresholds are above 25 dB, this is an indicator of hearing loss. From here on we need to determine the level of hearing loss (mild, moderate, severe and profound), the type of hypoacusis (transmissive or conductive, sensorineural or perceptive and mixed) and the origin of the problem with the remaining tests that will be performed (impedance audiometry, otoacoustic emissions etc.).
After performing the hearing test, we check if hearing aids need to be fitted. First, we test the patient’s hearing level and the likelihood that hearing aids would be efficient by means of a speech test (also known as a speech audiometry). This consists of assessing the patient’s language comprehension level using a list of 25 phonetically balanced words that the patient has to repeat to determine their auditory discrimination percentage.
If the patient needs hearing aids, it is essential to also check the discomfort levels (also known as discomfort thresholds) to adjust the hearing aid’s output and to ensure the user does not hear sounds that are above these discomfort thresholds.
The audiometry exam is totally free of charge and without obligation. You can request an appointment here or by calling 952 21 79 67. We will be happy to assist you.