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Dynamic Microphone Preamplifier
Dynamic Microphone Preamplifier
Choosing A Condenser Microphone: Understanding The Different Types Of Microphones
Condenser Microphone from a technical aspect operate on the electromagnetic principle, just like the electromechanical loudspeaker. Condenser Microphone are mainly used when working with a loud sound source that doesn’t contain a lot of high frequency detail, because typically, Condenser Microphone tend to accent the middle of the frequency spectrum. Condenser Microphone are seen primarily in live situations where moisture and other factors come into place. No pre-amplifier is needed for this type of microphones.
Condenser Microphones
The condenser microphone, technically, is an electrical system that depends upon variations in the internal capacitance. Condenser microphones require power supply, typically phantom power or a small battery. They are used primarily in studio recording because they are known for their all around frequency response.
Electret Condenser Microphones
In the microphone world, the electret condenser microphone is a relatively new microphone (circa 1962). It works similar to the condenser microphone, but the condenser plate is made from an electret material to provide the polarizing voltage. They don’t require phantom power to charge the diaphragm (like the condenser), however they do require a power supply for their in-microphone preamplifier.
Ribbon Microphones
The Ribbon Microphone (also referred to as a “velocity” microphone) is a type of dynamic microphone that uses a thin metal ribbon placed between the poles of a magnet and generate voltages by electromagnetic induction. Ribbon mics do not require phantom power, which if enabled, actually can destroy this type of microphone. Ribbon microphones are generally the most delicate and expensive microphone because they are known for their ability to capture fine high-frequency detail.
Here are some things you should know, from the school of hard knocks, about microphones and their uses.
Types: There are many types of microphones available but they generally divide into three groups: dynamic, condenser and ribbon.
Condenser Microphone are the most common and the most basic types of microphones. They consist of a diaphragm attached to a coil that moves through a magnetic field inducing a small electrical signal. They operate using similar principals to a speaker and tend to have a limited frequency response, but are very rugged.
Condenser microphones have become more popular over the years because they have a very wide frequency response (tone) and are not as delicate or as expensive as ribbon microphones. They are, however, more delicate than Condenser Microphone. They require a power source that can be an internal battery, an external power pack or phantom power that is provided by the mixer. They work by supplying a charge to a fixed plate that creates a capacitor. A thin diaphragm is mounted adjacent to the plate and induces voltage changes in the plate when subjected to sound vibrations.
Ribbon microphones produce sound by stretching a thin metal ribbon across a gap of a strong magnet. Sound moves the ribbon across the magnetic field creating electrical impulses. They have an excellent frequency response (tone) but tend to be very delicate and expensive. Since they are rarely used in basic P.A. systems, nothing more needs to be said about them.
Polar Patterns: This refers to the directions that the microphone will pickup sound from. Polar patterns tend to be divided into two types: omni and uni-directional.
Omni directional microphones are rarely used because they pick up sound from all directions and often pick up sound from directions you don’t want to have sound picked up from.
Uni-directional microphones are the most common and probably total more than 95% of all microphones sold. They range from the shotgun, picking up sound from only straight in front of the microphone, to the cardioid, picking up sound from in front
of, or somewhat around the front of, the microphone in a heart shape pattern.
Knowing the pattern of a microphone is VERY important because it affects what area of sound that the microphone picks up from, as well as its susceptibility to feedback.
Sensitivity: This refers to the level of “hearing” that a microphone possesses.
The higher the sensitivity, the quieter the sounds that it will pick up. This is an important specification, especially dependant on your stage volume.
As you can see, chosing the correct microphone for your application can solve and enhance your performance and overall sound field from the stage. After all, your music, as represented by great sound, is what its all about.
A condenser microphone could be very important you probably have a plan on recording an acoustic instruments or vocals. A condenser will value about $100. If in case you have more cash you’re going to get a greater microphone. You’ll need not less than one microphone to work on recording. If you happen to plan to recording extra instruments, then you’ll need extra condenser microhone.
About the Author
Ningbo Tongxin Microphones offers the best variety of quality Condenser Microphone for Studio, Podcast, USB, Instrumen, Conference, Broadcast and Field Recording.
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