翻訳と辞書 |
microphone Any electromechanical device designed to convert sound into an electrical signal. A microphone converts an acoustic waveform consisting of alternating high and low air pressure travelling through the air into a voltage. To do this it uses some kind of pressure or movement sensor. The simplest kind of microphone is actually very similar in construction to a {loudspeaker}. The analogue electrical signal can be fed into a computer's sound card where it is amplified and {sampled} to convert it into a digital waveform for storage or transmission. (2002-11-04)
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