Microphone
Microphone
A Microphone (pronounced: /ˈmaɪkrəˌfoʊn/) is a device that converts sound into an electrical signal. The term "microphone" comes from the Greek words "mikros" meaning small and "phone" meaning sound.
Microphones are used in many applications such as telephones, hearing aids, public address systems for concert halls and public events, motion picture production, live and recorded audio engineering, sound recording, two-way radios, megaphones, radio and television broadcasting. They are also used in computers for recording voice, speech recognition, VoIP, and for non-acoustic purposes such as ultrasonic sensors or knock sensors.
Types of Microphones
There are several types of microphones including dynamic microphones, condenser microphones, ribbon microphones, carbon microphones, piezoelectric microphones, and fiber optic microphones.
History
The first microphone was invented as a telephone transmitter by Emile Berliner in 1876. The carbon microphone, also known as carbon button microphone, button microphone, or carbon transmitter, is a type of microphone, a transducer that converts sound to an electrical audio signal. It consists of two metal plates separated by granules of carbon.
Usage
Microphones are used in a variety of settings and for a variety of purposes. They are most commonly used in public address systems, in radio and television broadcasting, and in the recording industry. They are also used in computers and in telecommunication systems.
See Also
External links
- Medical encyclopedia article on Microphone
- Wikipedia's article - Microphone
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