The microphone is defined as a sensor that converts the sound into an electrical signal. Microphones are used in many applications. They are used in various instruments, such as telephones, tape recorders, and hearing aids. They are also used in the production of films, live and recorded audio engineering, and radio and television. Microphones are used in computers for recording voice, and also for non-acoustic, such as ultrasound scanning.

The basic function of a microphone is to capture the sound of waves and interpret electrical signals. The common flow signal is activated through the help of thin membrane that produce some proportional electrical signal.

There are different types of microphones. The microphones used for live performances are not the same as those used in recording studios. Microphones can be generally divided into two main categories. These capacitors and dynamic. The condenser microphones function when the diaphragm acts as a plate of a capacitor, vibration and produce changes in distance between the plates.

The dynamic microphone, on the other hand, works the same way as a speaker, but the principle is reversed. As the diaphragm vibrates, the coil moves in the magnetic field, producing a current variable coil through the electromagnetic induction.

The low microphone is a microphone with a large diaphragm. Usually work on the principle of dynamic microphones. They are usually used in situations that produce very high sound pressure levels and are very robust and have Brutta high-frequency response. They are usually found in low barrel drum sets at rock concerts.

Another is the microphone wireless microphone, which is commonly used in Karaoke bars and stage performance. These microphones are essentially the same as ordinary microphones, they only have a transmitter. The transmitter can be in the body of a microphone in hand, representing the largest size of a wireless microphone, or in a separate belt worn-pack. Wireless microphones usually send only a single frequency to microsecond.

A ‘true diversity’ wireless system will have two antennas on the receiver end, that among other things, has a line level signal to the mixer instead of a microwave signal. When the signal strength between the two antennas varies, the receiver will opt to receive the signal from more powerful antennas. This step can be very quick and usually is unnoticeable. The true diversity wireless systems are usually far less sensitive to radio interference and blocking single antenna systems.

Lavalier microphones are another type of microphone is being used outside of transmission during the interviews. I lavalier microphones are the familiar ‘interviewer of the collar pin’, which consists of a small, usually electret microphone worn chest, clipped to clothing. This may be a wire or wireless means, although the latter is usually preferred.

The wireless version runs in a transmitter, usually worn on the belt. Battery or phantom power, depending on the brand of microphone, can power lavalier microphones. They were also good to boost up wind instruments, carved on board the ‘bell’.