first asks you a few questions. For example: Why do you think your hearing is deteriorating? Are you exposed to very loud noises at work
? An initial assessment will be made on the basis of your answers. The test itself is performed under laboratory rather than real-life conditions. In day-to-day situations, your hearing is exposed to different and even greater stress. This is taken into account in the assessment.
A hearing test generally takes place in a soundproof room or cabin. Sounds with different frequencies are played to you through headphones. These sounds cover the frequency range from 125 to 8,000 Hertz, i.e. from very low to very high. They are played individually in each ear and start very quietly, in a range that cannot be heard, and then slowly increasing in volume. You will be asked to indicate as soon as you first hear the sound. You will usually have to use a button or key.
At the end of the test with the headphones, the same test may be performed with vibrations on the skull.