Understanding Hearing Tests
Hearing tests help identify whether a child has difficulty hearing sounds clearly. Early detection of hearing problems is extremely important because hearing directly affects speech development, language learning, and social communication.
Several types of hearing tests are used by audiologists depending on the child’s age, cooperation level, and suspected condition.
Pure Tone Audiometry (PTA)
Pure Tone Audiometry is the most common hearing test used for older children and adults. The child listens to different sound frequencies through headphones and indicates when they hear a sound.
- Measures hearing sensitivity
- Identifies mild to severe hearing loss
- Helps determine hearing thresholds
- Commonly used for school-age children
BERA (Brainstem Evoked Response Audiometry)
BERA is an objective hearing test that evaluates how the auditory nerve and brainstem respond to sound. Small electrodes are placed on the head to measure brain activity when sounds are played.
- Used for infants and young children
- Does not require active participation
- Helps detect nerve-related hearing issues
- Often used when a child cannot respond to regular hearing tests
OAE (Otoacoustic Emissions)
OAE testing measures the response produced by the inner ear (cochlea) when sound enters the ear. A small probe is placed in the ear canal that sends sounds and records the ear’s response.
- Common newborn hearing screening test
- Quick and painless
- Detects inner ear (cochlear) function
- Widely used in early hearing detection programs
Impedance Audiometry
Impedance testing (also called tympanometry) evaluates how the middle ear is functioning. It checks the movement of the eardrum and identifies problems such as fluid in the ear or Eustachian tube dysfunction.
- Detects middle ear infections
- Identifies fluid behind the eardrum
- Helps evaluate eardrum mobility
- Often used with other hearing tests
Why Early Hearing Testing Matters
Children with untreated hearing loss may experience delays in speech, language development, learning, and social interaction. Early hearing evaluation allows families to seek proper support and intervention.
If you suspect your child may have hearing difficulties, consulting a qualified audiologist or speech-language professional can help determine the next steps.