new biometric: sounds emitted by human ear

[Martin Tomasek <tomasek () ufe cz>]

"Called otoacoustic emissions (OAEs), the ear-generated sounds emanate 
from within the spiral-shaped cochlea in the inner ear. They are thought 
to be produced by the motion of hair cells within the outer part of the 
cochlea. Typically, sounds entering the ear cause these outer hair cells 
to vibrate, and these vibrations are converted to electrical signals 
which are transmitted along the auditory nerve, allowing the sound to be 
sensed. Crucially, these cells also create their own sounds as they 
expand and contract."

http://www.newscientist.com/article/mg20227035.200-our-ears-may-have-builtin-passwords.html

--
Martin Tomasek

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