What is 'masking' in audiometry?

Masking in audiometry is primarily a method used to ensure that the non-test ear does not hear test signals presented to the test ear. When testing an individual's hearing, it is crucial to isolate the ear being tested to obtain accurate results. If sounds from the test ear can be heard by the non-test ear, it may influence the individual's responses, leading to inaccurate threshold measurements.

By applying masking noise to the non-test ear, audiologists can effectively block its ability to perceive sounds intended for the test ear. This ensures that any responses obtained are due solely to the signals directed to the test ear, allowing for a more precise evaluation of hearing capability. Such controlled conditions are essential for conducting reliable audiometric assessments and determining the appropriate treatment or hearing aid options for individuals with hearing loss.

Understanding masking is crucial for audiologists and hearing aid dispensers to deliver high-quality care and accurate diagnoses in the process of hearing assessment.