| 单词 | microphone |
| 释义 | microphone (once / 2446 pages) n A microphone is an electric device that amplifies the sound of a voice or instrument. If you're going to stand up in front of a large crowd and want to be heard, you better use a microphone. Microphones require electricity and amplifiers to work — what they do is take a sound and convert it into an electrical signal. That signal can then be amplified and sent to a speaker or recorded. Performers can sing softly into a microphone and still be heard clearly by an audience member at the very back of a huge concert hall. The popularity of radio and film inspired this meaning of microphone — originally, the word meant "ear trumpet for the hard-of-hearing." WORD FAMILYmicrophone: microphones, microphoning USAGE EXAMPLESShe kept on smiling and strutting in her high heels; she held her microphone toward the crowd. New York Times(Jan 01, 2017) After about a minute, she stopped singing, dropping the microphone to her side. Los Angeles Times(Jan 01, 2017) At one point, she lowered the microphone while the vocals continued. Time(Jan 01, 2017) n device for converting sound waves into electrical energy Syn|Hypo|Hyper mike bug a small hidden microphone; for listening secretly capacitor microphone, condenser microphonemicrophone consisting of a capacitor with one plate fixed and the other forming the diaphragm moved by sound waves crystal microphonea microphone in which sound waves vibrate a piezoelectric crystal that generates a varying voltage directional microphonea microphone that is designed to receive sound from a particular direction spike mikea contact microphone for listening through walls cardioid microphonea directional microphone with a cardioid pattern of sensitivity electro-acoustic transducer a transducer that converts electrical to acoustic energy or vice versa |
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