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Perhaps the most directional and qualitative one among others is the shotgun microphone. By direction, we mean the directivity of the microphone that usually is defined by the shape. Between the two elements of a microphone, that is inner and outer, the inner elements determine the structural shape of the capsule and the outer is the interference tube. Moreover, this microphone has amazing audio quality and is best for using in TV, films and wildlife recordings.
Shotgun microphone used to be like an externally powered long condenser microphone, but after the modification it is now a long barreled one with acceptance angle. It is mainly used with the DV cams, especially for shooting documentaries and covering live events. It proves to be more fruitful even incase there is no sound recordist. Therefore, once it is mounted on the camcorder its performance begins. But it needs a good mount like the Universal Mini Mount that has two-inch height extension to remove the tip of the microphone from the upper portion of the picture. And this kind of extension is mainly necessary for the smaller camcorders.Another method of using a shotgun microphone that is usually preferred by the professionals is boom mounting. The main benefit of using a shotgun in a boom pole is that it can be brought closer to the subject that will give better signal and will exclude ambience sound. Moreover, there will be richness in the sound.

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Microphones are commonly used in every stage performance, music concert, television program and such other events. Generally, during a performance, sound waves are captured in microphones with the help of diaphragm, which experience a vibration when the waves get initiated into the microphone. Finally the original sound is received after the vibrations get converted into electrical signals. Among various types of microphones, laser microphones are the exclusive ones, with latest technical features.
The technology of laser is quite interesting and a popular one. Laser microphones basically use the same technology while experimenting with the sound. They first of all detect the vibrations in a reflected laser beam and then convert them into audio signal. To say more, with the help of laser light, the laser microphones converts the acoustical sound waves to electrical signal, so that it can be processed and amplified for sound reproduction.The laser beam that it has must be reflected off a glass window or any rigid surface, which will vibrate corresponding to the nearby sound. This microphone has the ability to turn any vibrating surface into a microphone just by measuring the space between itself and the surface. This is because, while doing so, the little fluctuations in the space become the electrical signal of the sound.However, these types of microphones are designed in a typical way. The outer housing, which is cylindrical in shape, has spaced opening so that the sound waves can enter. There is also an inner housing, which too is cylindrical in shape and is positioned centrally inside the outer one.

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Microphone was devised to intensify and amplify small sounds, making them more distinctly audible and comprehensible, thereby facilitating long distance communication. The first microphone was invented and developed to be used as a telephone voice transmitter. The word microphone is taken from two Greek words. They are micro, which means small, and phone, which means communication.

A microphone is a form of a transducer that changes sound from one form to another. It converts sound waves, existing as patterns of air pressure, into electric signals and eventually back to sound waves through speakers. There are several techniques that can be employed in constructing a microphone but the most commonly used technique is the magneto dynamic design.
In a dynamic microphone, sound waves emitted from a source cause movements in a thin metallic diaphragm and an associated coil of wire. A magnetic field is developed around the coil with the help of a magnet and as the coil moves within this field under the effect of the sound waves, it produces an electric current. The amount of current produced depends on the velocity of that motion, so it is velocity sensitive.The dynamic microphones are of two different types, ribbon microphones and moving coil microphones. A ribbon microphone consists of a metal ribbon which is thin. And it is balanced in a magnetic field. The ribbon is connected electrically to the output of the microphone. The vibration of the ribbon within the magnetic field generates the electrical signal.

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The word microphone has actually come from two Greek words, micro that means small and phone that means voice. Microphone’s history started with the telephone transmitter, which was developed by Alexander Graham Bell and Elisha Grey simultaneously.
The first microphone can be called a variable resistance device. That had a mouthpiece, which was funnel shaped and its membrane diaphragm was stretched. The membrane diaphragm was the base of this mouthpiece. A metal cup used to be there just below the diaphragm. A metal pin used to go down to the cup right through the diaphragm. There was dilute acid in the cup. The fix resistance was shown by an ohmmeter that was located between the pin and the cup. If the diaphragm moves, then the pin also moves up and down with it in the liquid. And this makes the resistance vary accordingly. This microphone was a wired microphone.
In 1900 telephone transmitter was the only kind of microphone which was available. Several new kinds of microphones emerged after the radio power increased. Multiple microphones were used in those days. They used to have only one mouthpiece.
Lt Ditchman started another system. He put a set of microphones in a stand and rotated them in the intervals. He did this to avoid their overheating. But these multiple microphones had some drawbacks. One of the most serious problems was that if one of the microphones faced a short circuit problem then it spread rapidly to the others. Rudolph Goldschmidt patented a circuit that later solved this problem.

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Microphones are one of the most sensitive instruments. They can stop performing due to various small problems. The first step lies in identifying the cause for the non functional state of the microphone.
However, before you start repairing your microphone, here are a few general tips to help you to stop it from failing again. The microphone being a responsive object is sensitive to even slight changes in the weather. It is always advisable to keep the microphone inside a moisture proof box. . If the humidity or the moisture content in the air affects the membrane of the microphone, the sound quality may start distorting or sometimes even disturb the entire signal flow.
Various microphones are found faulty due to various reasons. You can find a microphone with no transmission or low or erratic RF output. In certain microphones the ON and OFF switch is sometimes faulty. When the ON and OFF switch is faulty, you can be assured that at least the audio output is not affected. However, a faulty R. F. output or driver transistor can produce some symptoms that may partially or fully disturb the sound content and quality.
You can use a bridge rectifier to protect the rig against reverse polarity. Applying a light oil or WD40 to the contacts can in most cases, cure noisy crackling that is caused by a microphone switch. It can also be used in crackling squelch volume controls. Also, it can be used to clean the outside of rigs and to improve the clarity of channel displays.

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All microphones convert sound energy into electrical energy, but there are many different ways of doing the job, using electrostatics, electromagnetism, piezo electric effects or even the change in resistance of carbon granules. 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 for non-acoustic purposes such as ultrasonic checking.
When it comes to microphones used in music recording or live performance the vast majority of microphones used are either capacitor or electrostatic or dynamic or electromagnetic models. Both types employ a moving diaphragm to capture the sound, but make use of a different electrical principle for converting the mechanical energy into an electrical signal. The efficiency of this conversion is very important, because the amounts of acoustic energy produced by the voices and the musical instruments are so small.
Dynamic Microphones
Dynamic microphones work via electromagnetic induction. They are robust, relatively inexpensive and resistant to moisture, and for this reason they are widely used on stage by singers. There are two basic types. The moving coil microphone and the ribbon microphone.Dynamic microphones have the advantages of being relatively inexpensive and hard wearing, and they do not need a power supply or batteries to make them operate. A lightweight diaphragm, usually made of plastic film, is attached to a very small coil of wire suspended in the field of a permanent magnet.

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Dynamic microphones work via electromagnetic induction. They are robust, relatively inexpensive and resistant to moisture, and for this reason they are widely used on-stage by singers. Moving coil microphones use the same dynamic principle as in a loudspeaker, only reversed. A small movable induction coil, positioned in the magnetic field of a permanent magnet, is attached to the diaphragm. When sound enters through the windscreen of the microphone, the sound wave moves the diaphragm. When the diaphragm vibrates, the coil moves in the magnetic field, producing a varying current in the coil through electromagnetic induction. A single dynamic membrane will not respond linearly to all audio frequencies. Some microphones for this reason utilize multiple membranes for the different parts of the audio spectrum and then combine the resulting signals. Combining the multiple signals correctly is difficult and designs that do this are rare and tend to be expensive. There are on the other hand several designs that are more specifically aimed towards isolated parts of the audio spectrum. The AKG D 112, for example, is designed for bass response rather than treble[2]. In audio engineering several kinds of microphones are often used at the same time to get the best result. Ribbon microphones use a thin, usually corrugated metal ribbon suspended in a magnetic field. The ribbon is electrically connected to the microphone’s output, and its vibration within the magnetic field generates the electrical signal. Ribbon microphones are similar to moving coil microphones in the sense that both produce sound by means of magnetic induction.

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Guitar microphones come in a variety of setups. They are intended to be used with equipment made for microphones. The concept is very simple. A microphone is meant for a PA system and not for a guitar amplifier.
The units will work to a degree in a guitar amplifier and then we hear the full potential of the instrument. Almost all the manufacturers provide the facilities for the acoustic guitar player to capture the most natural sound in a live or recording setting. Guitar microphones from famous brands AMT is one of the pioneers in the manufacture of various equipment for musical instruments. AMT also pioneers in manufacturing some of the best guitar microphones. AMT has engineered different models in order to fit into the needs or playing applications that acoustic guitarists might require.
Both S15G and S3G are available in the popular BP or belt pack version and are also available in the Studio setup as well. The S15G is a low-profile condenser microphone that has a cardioid pattern which gives it an advantage over most guitar microphones in the market.The element as well as the mounting clamp is designed for the instrument. It is rugged construction of anodized aviation aluminum which makes it highly durable, while keeping it lightweight and non-corrosive. The microphone is attached to the side of the instrument, and is suspended in a 4 point isolation ring reducing handling noise.

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Microphones are one of the most sensitive instruments. They can stop performing due to various small problems. The first step lies in identifying the cause for the non functional state of the microphone.
However, before you start repairing your microphone here are a few general tips to help you to stop it from failing again. The microphone being a responsive object is sensitive to even slight changes in the weather. It is always advisable to keep them inside a box wrapped in moisture absorbents. If the humidity or the moisture content in the air affects the membrane of the microphone, the sound quality may start distorting or sometimes even disturbing the entire signal flow.
Various microphones are found faulty due to various reasons. You can find a microphone with no transmission or low or erratic RF output. In certain microphones the ON and OFF switch is sometimes faulty. When the ON and OFF switch is faulty, you can be assured that at least the audio output is not affected. However, a faulty R. F. output or driver transistor can produce some symptoms that may partially or fully disturb the sound content and quality.You can use a bridge rectifier to protect rig against reverse polarity. Applying a light oil or WD40 to the contacts can in most of the cases, cure noisy crackling that is caused by a microphone switch. It can also be used in crackling squelch or volume controls and to clean the outside of rigs and to improve the clarity of channel displays.

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The audio system is an ever-changing technology. With the recent changes in the audio market, the microphones available are various, meeting different needs of those who are looking for it. However, we should remember that the basic designing structure of a microphone stays the same.
Sound is created by pressure and thus microphone works on this principle. The accessories for your microphones though basically stay the same, slight changes may occur depending on the type of microphones. However the basic fact that remains the same is that a purely mechanical system shows how much energy the vibrations in the air can have and thus further create sound. Various types of microphones are discussed below in details that will help you to identify the reason why you need different accessories for each of them.
The very first microphone was designed by using a metal diaphragm, which was attached to a needle, and this needle scratched a pattern onto a piece of metal foil. The pressure differences in the air that occurred, when one spoke towards the diaphragm moved the diaphragm. This moved the needle, which was recorded on the foil. Later when the needle was ran back over the foil, the vibrations scratched the foil. Then this will move the diaphragm and recreate the sound.All the latest and modern microphones still work on the historical principles. They still accomplish the same thing as the original, but do it electronically rather than mechanically.

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