Microphone

Microphone is a computer input devices such as voice captured by the michrophone. Microphones are also used in telephone, hearing aid, public events, motion picture production, live and recorded audio engineering, two-way radios, megaphones, radio and television broadcasting, etc.

How the Microphone Works:

When we speak, our voice will form a sound wave and headed to the microphone.
In microphone, the sound waves will hit the diaphragm which consists of a very thin plastic membrane. Diaphragm vibrates according to the sound waves that it receives.
A coil or Voice Coil located at the rear of the diaphragm will also vibrate in accordance with vibration of the diaphragm.
A small fixed magnet which is surrounded by the coil creates a magnetic field in line with the movement of Coil.
Voice Coil movement in this magnetic field will induce an electrical signal.
Electricity generated signals are then flowed to the Amplifier or a sound recording device.