Immittance Audiometry
Immittance Audiometry provides objective information about middle ear function. Tympanometry and acoustic reflex testing complement a comprehensive hearing assessment.
Middle Ear Assessment
Objective Testing
Advanced Equipment
Expert Audiologists
About Immittance Audiometry
Immittance Audiometry is an objective audiological assessment used to examine how the middle ear responds to sound and changes in air pressure. Tympanometry measures changes in acoustic immittance while controlled air pressure is varied in the ear canal. Depending on the clinical assessment, acoustic reflex measurements may also be performed to provide additional information about the auditory system.
How It Works
Probe Placement
A small, soft probe is placed gently at the entrance of the ear canal to create an appropriate seal for testing.
Tympanometry
The equipment changes the air pressure in the ear canal while presenting a probe tone and measuring how the ear responds.
Acoustic Reflex Testing
When clinically appropriate, controlled sounds may be presented while the equipment measures changes associated with the acoustic reflex.
Result Interpretation
Your audiologist reviews the tympanogram and other immittance measurements together with your hearing-test findings.
Benefits of Immittance Audiometry
Middle Ear Insight
Provides objective information about middle ear function.
Objective Assessment
Requires little active response from the person being tested.
Tympanogram Results
Records middle ear responses as ear-canal pressure changes.
Reflex Information
Acoustic reflex measures can add useful information to the assessment.
Complete Evaluation
Complements other audiological tests for better clinical understanding.