The different types of hearing tests and what to expect should you need one
Before we talk about the hearing tests – it is important to understand how we hear. Our ears are made up of three parts the outer, middle and inner ear.
Each part of the ear plays a crucial role in how we hear. Problems in sound transmission through any part of the ear can result in a different degree and type of hearing loss. We must, therefore, have tests for each part of the ear administered by a fully qualified audiologist.
Pure tone screening
A machine called an audiometer produces a range of beeps and whistles (pure tones) of the differing pitch. Headphones or insert ear tips are used and require you to respond using a buzzer whenever a sound is heard. This tests your outer, middle ear and inner ear hearing pathways.
Bone conduction testing
A headband like structure, the bone conductor, is placed behind the ear. The test is measured the same as the pure tone test using a buzzer when the sound is heard. This test, however, bypasses the outer and middle ear and tests the inner ear directly. Should the result differ to those gathered through pure tone testing this is used in identifying the type of hearing loss?
Measures the function of the middle ear. A probe like a device that changes the air pressure in the ear is used to detect movement of the eardrum and connected ossicle chain.
Acoustic reflex testing
Using the same probe like device this is another automatic test measuring both middle and inner ear functions. The test involves presenting the ear with loud sounds of the differing pitch to trigger an involuntary muscle contraction of the middle ear. The results of this test in combination with the above tests are used to determine the location of hearing loss or to confirm normal hearing.
Speech discrimination testing
This test assesses outer, middle and inner ear function. You are played a series of words/sentences under headphones in both quiet and noise and asked to repeat what is heard. This test is assessing the clarity of your hearing.
What should you expect from a diagnostic hearing assessment?
You may be referred by your GP, another health professional or self-referred for a diagnostic hearing assessment.
All assessments should be completed in a sound-treated office room in privacy.
This is what you should expect if you are booked in for this kind of appointment which can take up to
Don’t have any noticeable concerns for your hearing but are wanting a quick check/baseline?
Book in for a pure tone screening. Should this result indicate poor hearing the audiologist will discuss how further testing may be suitable for you!