An instrument for converting sounds into electrical signals, for the purpose of recording or amplifying the sounds. It produces its effects in various ways, as for example by the changes of intensity in an electric current, occasioned by the variations in the contact resistance of conducting bodies, especially of imperfect conductors, under the action of acoustic vibrations. Other forms of microphone may use changes in capacitance or other phenomena to transduce the sounds into electrical signals.
Usually shortened to mic. An instrument which collects live sound and coverts it to electrical impulses which are then input into a mixer/amplifier.
A device that converts power in the form of sound waves into electrical power. This can be directional or nondirectional, flat frequency response or contoured, fixed or mobile, condenser or dynamic or one of many other types, wired or wireless, high or low impedance, with or without preamp, etc.