Microphone, scientific name for the Microphone, it is the voice signal into electrical energy conversion devices, translated by Microphone. Also known as the microphone, the microphone. In the 20th century, the microphone by initially by acoustic resistance conversion for inductor, capacitor switching electricity development, a large number of new microphone technology gradually developed, including the ribbon, such as moving coil microphone, and the current widespread use of capacitor microphone and electret microphone.