Technology Integration
Microphone
What are they?
A microphone, sometimes referred to as a mike or mic , is an acoustic to electric transducer or sensor that converts sound pressure into an electrical signal. Microphones are used in many applications such as telephones, tape recorders, hearing aids, motion picture production, live and recorded audio engineering, in radio and television broadcasting and in computers for recording voice, VoIP, and furthermore for non-acoustic purposes like ultrasonic checking. (source: wikipedia)
For more infomation: http://en.wikipedia.org/wiki/Microphone
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