There are different types of microphone and diverse ways of
classifying them. Here, we will look at the polar patterns and
diverse technologies available. Microphones are designed with
one purpose in mind, converting acoustic energy into electrical
energy and as part of the process, they use a diaphragm. Now
that the common ground has been pointed out, the concentration
will be shifted to the differences. Basically, there are 5
different types of microphone technologies: - Carbon: Carbon
dust was used by the earliest microphones for the purpose of
identifying audio signal. Telephones used this type of
microphones and still, they can be found in some of the
telephones available today. In this case, carbon dust is used
for the purpose of running current through and the carbon is
compressed as a result of the fluctuating current as sounds
waves hit the diaphragm. - Crystal: In this type of microphone
the crystals used change shape as a result of electrical
properties change. A diaphragm is attached to crystal an