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A microphone, colloquially nicknamed mic or mike (/ËmaÉªk/), is a transducer that converts sound into an electrical signal.
The Microphone Input Transducer. The Microphone, also called a âmicâ, is a sound transducer that can be classed as a âsound sensorâ. This is because it produces an electrical analogue output signal which is proportional to the âacousticâ sound wave acting upon its flexible diaphragm.