You must have heard the name of the microphone and you have probably seen it up close or in the form of an image or video, etc. The microphone is also called Sadabar in the sweet Persian language. This device is actually a sensor that can convert sound waves into electricity. Regarding the name of this device, it should be said that it is called MAIK orally. This is the device that can convert sound and electricity into electricity and electrical signals.
History and Inventor of the Microphone
The microphone was probably invented in 1876 by a man named Emile Berliner, and at the time it was a device used as a sound transmitter in telephones. But in the future, mics and microphones will have other applications, such as recordings, karaoke audio systems, hearing aids, film and carton making, audio engineering, walkie-talkies and special radio phones, hand-held speakers, and radio and television programs. They also found radio and television, sound recording in computers and studios, speech recognition systems, and so on.
Introducing different types of microphones
As mentioned, in the past, the MIC was used for use in telephones, and then gradually this audio sensor was able to find other applications. Today, microphones use electromagnetic induction systems, which are called dynamic. Condenser capacitance change systems such as condenser and piezoelectric stress and optical modulation mounts also use mechanical audio waves to generate electrical signals. Types of microphones include:
Dynamic microphones: These microphones are used in a variety of concerts and live performances, television and radio, movies and lectures. Dynamic microphones are less sensitive to capacitive microphones. Dynamic microphones are cheaper than capacitive microphones, but are usually more expensive because they are fully offered and sold.
Capacitive microphones: These are inexpensive microphones that are very useful. They are very small in size and light in weight and are highly sensitive to their size and are used in electronic and electrical circuits. These capacitive microphones are used in mobile phones and tablets, Bluetooth dongles, headphones and headsets, laptops, iPhones and electric door openers, recordable flash drives, etc.
How is sound transmitted from the air to the microphone?
We must first know that air is not an empty space, and in fact the air around us is a collection of various gases and other suspended particles, and we cannot see the molecules with the naked eye because the distance between the molecules is so great.
Usually the air around us is a combination of oxygen, nitrogen, argon, carbon dioxide, etc .. Now imagine that a body or something moves between this combination of gases, for example the throat and larynx of a human, this movement causes molecules to Around the shock and pressure, and in the same way the molecules collide with each other and form a wave, which we call the sound wave or sound wave. This wave is followed until the mentioned energy is lost and the sound is no longer heard. Microphones use a power supply such as a battery or adapter or..
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