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What Is an ERD

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What is an ERD?


Definitions:

High-Tone Frequency Loss

A hearing impairment where there is a reduced ability to hear or interpret high-pitched sounds, often affecting perception of speech sounds.

Tympanic Membrane

Otherwise known as the eardrum, it is a thin layer that separates the outer ear from the middle ear and vibrates in response to sound waves.

Elasticity

The ability of an object or material to resume its normal shape after being stretched or compressed.

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