Question

What does the outer ear not do?
does it transform sound or does it deal with high frequencies

Answers

DrBob222
It does neither of the two you mentioned unless you define transform differently that I do. The outer ear collects sound to funnel it into the inner ear.
DrBob222
From Google:
The outer ear, external ear, or auris externa is the external portion of the ear, which consists of the auricle (also pinna) and the ear canal. It gathers sound energy and focuses it on the eardrum (tympanic membrane).

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