
Microphones
Microphones can be classified in two ways, the type of
transducer and the type of acoustic characteristic. Each has its
practical application, some being more suited for one purpose
than another.
Transducers
There are several ways of converting sound into electrical
energy. The main factors to be considered when choosing a
particular type are: fidelity, sensitivity, robustness,
convenience in use and cost. Appearance may also be
important in some cases, but most types are available in a
variety of housings so this should not affect the choice of type.
Moving-coil A shallow plastic cone has a coil wound on a
former at its apex. On ...