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project - original

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by

Stefanie D

on 14 March 2013

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Transcript of project - original

photo (cc) Malte Sörensen @ flickr Hearing Vocabulary:
deaf
Deaf
Hard of Hearing How does hearing work? Sound travels through various parts of the ear before being sent to the brain. Sound travels in Waves Your ability to hear sound depends on a wave's frequency. 20 - 20,000 Hz
Higher frequency, higher pitch Stefanie Dominguez Sound and Hearing Aids Sine Waves Wanna test your hearing? Test: http://www.noiseaddicts.com/2009/03/can-you-hear-this-hearing-test/ Hearing Aids Hearing aids amplify sound Analog vs Digital Fun Fact: Many whales and dolphins can create and perceive sounds around 175 kHz. Most hearing tests only go up to 8kHz, because that is the maximum frequency needed for normal conversation. "Understand" - (pg 11) http://books.google.com/books?id=r1HiJMZdNkcC&lpg=PA150&ots=Vn_7RSASmq&dq=equation%20hearing%20aid%20math&pg=PA11#v=onepage&q&f=false
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