Uni Directional Microphones

11Jul/080

Uni Directional Microphones

Make A Star Using Different types of microphones at stage

Using different types of microphones and producers could make all the difference on the planet where the establishment of a stage for your group. If you use the wrong one, you fight back with all night. Same if you use a feed-back "Eliminator", you'll have a very poor frequency response, as a result of it is "eradicated" suggestions, instead of freguencies said that making music full and enjoyable.

Here are some questions you should know from School of the heavy strikes on the microphones and their uses.

Spells: There are different kinds of microphones available, but they generally divide into three groups: dynamic, condenser and ribbon.

Dynamic microphones are the most typical and essentially the most basic forms of microphones. They include a membrane attached to a coil that strikes by magnetic field induces a small electrical signal. They work with guidelines on a loudspeaker and tend to have a limited frequency response, but are very robust.

Condenser microphones have developed more widespread in the years following they have a very wide frequency response (tone) and are generally not as sensitive or more expensive than ribbon microphones. They are, however, extra delicate than dynamic microphones. They require a diet that may influence an internal battery, an external power pack or phantom power is provided by the mixer. They work by providing a cost for a fixed plate creates a capacitor. A thin membrane is mounted adjacent to the plate and induced voltage changes in the plate when subjected to sound vibrations.

Ribbon microphones produce a sound by stretching a thin metal strip in a niche of a powerful magnet. Sound strikes the tape through the magnetic field to create electric pulses. They have a superb frequency response (tone) but tend to be very difficult and expensive. Since they are almost never programs used in the PA primary, does not need anything extra to say about them.

Polar patterns: This is the direction the microphone is the sound from. polar models are generally divided into two types: unidirectional and OMNI.

Omni directional microphones are not often used because they decide the sounds from all directions and often decide on his instructions from you not need to have sound captured from. Can you say ...
... "Feedback" ...

Uni-directional microphones are the most typical and, eventually, all over 95% of all microphones sold. They go shotgun, choosing only the sounds right in the entrance the microphone, cardioid, selecting sounds from the entry into
Or substantially across the front, the microphone in the model heart-shaped.

Understanding the sample of a microphone is very important given that it affects the area of what the microphone picks up the, In addition to its sensitivity to feedback.

Sensitivity: This refers to the degree of "Play" which has a microphone.

The upper part of the sensitivity, the quietest sounds they will pick up. This is a critical specification, particularly dependent in your stage volume.

Impedance: It is essential to know so that you buy the microphone correctly to match your specific mixer. While many drummers have entries for each excessive and low impedance microphones, only part of one or the other. Generally speaking, if the impedance of the microphone is above 1000 ohms (1k ohm), it is considered a high impedance, otherwise it is considered low. Most professional microphones are low impedance and include a cable with XLR connectors. Excessive impedance microphones are generally with a phone cable (1 / 4 ") connectors. You should purchase the transformers in 1 / 4" connectors that the change impedance input stage too, as the guitars or keyboards, low-level balanced inputs, to help eliminate ground loops and noise.

As you can see, choosing the microphone correctly in your application may fix and improve your performance and the total area of sound scene. In any event, music, represented by its pleasant, that is what its all about.

About the Author

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Episode 33. Microphone Directional Patterns

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