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microphone

- 6 dictionary results

mi⋅cro⋅phone

[mahy-kruh-fohn]
–noun
an instrument capable of transforming sound waves into changes in electric currents or voltage, used in recording or transmitting sound.

Origin:
1875–80; micro-, in sense “enlarging” (extracted from microscope ) + -phone
mi·cro·phone   (mī'krə-fōn')   
n.  An instrument that converts sound waves into an electric current, usually fed into an amplifier, a recorder, or a broadcast transmitter.
mi'cro·phon'ic (-fŏn'ĭk) adj.

Microphone

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.
Language Translation for : microphone
Spanish: micrófono,
German: das Mikrophon,
Japanese: マイクロフォン

microphone 
coined from Gk. mikros "small" + phone "sound" (see fame). Modern meaning dates from 1929, from use in radio broadcasting and movie recording. Earlier, "telephone transmitter" (1878) and "ear trumpet for the hard-of-hearing" (1683). Of the two spellings of the short form of the word, mike (1927) is older than mic (1961).

Main Entry: mi·cro·phone
Pronunciation: 'mI-kr&-"fOn
Function: noun
: an instrument whereby sound waves are caused to generate or modulatean electric current usually for the purpose of transmitting or recording sound (as speech or music)

microphone hardware, audio
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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