Microphone Reviews-Understanding the Basics of a Condenser Microphone
What we will first of all seek to address is to see what it is that a condenser microphone actually is. While the dynamic microphones have become so popular for stage use and this is thanks to their rugged construction, the condenser mics have actually cut themselves a sphere in the market being the preferred choice when it gets to studio recording. Below is a look at some of the reasons.
To begin with, we will take a look at how a condenser mic works. These mics are as well referred to by others as the “capacitor microphones” as it is the case with the British. From our elementary physics knowledge, we know of capacitors to be formed of two metal plates that are places in close proximity. The same class tells us that the closer the plates the higher the capacitance. In essence, this is the same construction principle behind the condenser capsule. The condenser capsule is made of a thin membrane which is so close in proximity to a metal plate that is solid anyway. As one characteristic that is of a must of the membrane or otherwise known as the diaphragm is that it must be electrically conductive, at least on their surface. In this you will find the most common materials used being such as gold sputtered mylar and for the traditional models you will meet those made of some extremely thin metal foil. It works in such a manner as when the sound waves will reach the membrane, then it sets in motion in relation to the solid backplate. What this means is that the separating distance between the two plates changes, which eventually translates into a change in the capacitance according to the rhythm of the sound waves. Here you see the basic principle at work when sound signals are converted into electrical signals.
For their operation, the condenser microphone will need to be powered by an external power source. Formerly, this would be a great inconvenience but thanks to development, nearly all mics inputs has the P48 phantom power which has actually been regarded as the standard internationally. As a result of the fact that they are so of low-mass membranes, the condenser microphones are known to provide superior sound quality. This is given the fact that the diaphragm being so low in mass, it will be quite good at following the waves, far more accurately as compared to the dynamic microphones that have a heavy coil attached to the membrane.