device which converts sound waves into electronic signals for recording and amplification or broadcast.
Device for converting sound into electrical pulses which can then be amplified or recorded onto tape. Signals from a microphone are very low level and are amplified in the mixing desk to line level. See Dynamic Mic, Condenser Mic, Phantom Power, Pick-up, Radio Mic.
\mi"cro*phone\ (?), n. [micro- + gr. &?; sound, voice: cf. f. microphone.] (physics) an instrument for intensifying and making audible very feeble sounds. it produces its effects 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.
A microphone, colloquially mic or mike , is an acoustic-to-electric transducer or sensor that converts sound into an electrical signal. Electromagnetic transducers facilitate the conversion of acoustic signals into electrical signals. Microphones are used in many applications such as telephones, hearing aids, public address systems for concert halls and public events, motion picture production, live and recorded audio engineering, two-way radios, megaphones, radio and television broadcasting, and in computers for recording voice, speech recognition, VoIP, and for non-acoustic purposes such as ultrasonic checking or knock sensors.
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1. device for converting sound waves into electrical energy
(hypernym) electro-acoustic transducer
A device that converts sound into an electrical signal. Common microphones include cardioid, ribbon, stereo, omnidirectional and condenser.
The signer mimes holding a microphone in front of the face.
A transducer device which transforms sound pressure waves into electrical audio signals.
An instrument for intensifying and making audible very feeble sounds. It produces its effects 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.
An apparatus for magnifying faint sounds.
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