The Ear - Let’s Design an October 15, 2007 ear We...

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Unformatted text preview: Let’s Design an October 15, 2007 ear We probably came from green slime … An Important Question WHY do we need to hear hear ? WHY did ears ears evolve in most (not all) species?? Physical Design Requirements Must hang on the head in a place where it usually won’t be tightly covered. iPods etc. excluded It should be very sexy. It can’t be too heavy. It should be sensitive. It should be able to sense direction of the sound’s origin. (WHY??) (WHY??) It should be able to distinguish different frequencies. Component Definition A sound “collector” to channel as much of the sound as possible to the actual collector. More Component Definitions A sensor that collects the sound and converts it into something that moves. A membrane at the end of the collector would work because it will move in response to the pressure changes in front of it as long as the pressure at the back of the membrane remains the same. A converter to adjust the amplitude to the desired strength of the signal. Transmits forward into the process. A frequency sensor/discriminator An “electrical signal” producer A Brain A “wire” or connection to the brain. A program in the brain’s computer (cortex) that converts the signal into something perceived as sound. Walla… an ear!...
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This note was uploaded on 07/24/2011 for the course MUS 3930 taught by Professor Bindell during the Fall '07 term at University of Central Florida.

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The Ear - Let’s Design an October 15, 2007 ear We...

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