slovodefinícia
microphone
(mass)
microphone
- mikrofón
microphone
(encz)
microphone,mikrofon n: Zdeněk Brož
microphone
(gcide)
microphone \mi"cro*phone\ (m[imac]"kr[-o]*f[=o]n), n. [Micro- +
Gr. fwnh` sound, voice: cf. F. microphone.] (Physics)
An instrument for converting sounds into electrical signals,
for the purpose of recording or amplifying the sounds. It
produces its effects in various ways, as for example 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. Other forms of microphone may use
changes in capacitance or other phenomena to transduce the
sounds into electrical signals.

Note: The electrical signals produced in a microphone may be
transmitted to recording or amplifying equipment
through a conducting wire, or by transmission as radio
waves. The latter method is popular for use in small
mobile microphones used by performers in plays and
other entertainment events, at public meetings, and by
broadcast personnel.
[1913 Webster +PJC]
microphone
(wn)
microphone
n 1: device for converting sound waves into electrical energy
[syn: microphone, mike]
microphone
(foldoc)
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)
podobné slovodefinícia
condenser microphone
(encz)
condenser microphone, n:
crystal microphone
(encz)
crystal microphone, n:
microphone boom
(encz)
microphone boom, n:
microphones
(encz)
microphones,mikrofony n: pl. Zdeněk Brož
lavaliere microphone
(gcide)
lavaliere microphone \la`va`liere" mic"ro*phone\ n.
A small microphone worn around the neck on a supporting
string or chain.
[PJC]
capacitor microphone
(wn)
capacitor microphone
n 1: microphone consisting of a capacitor with one plate fixed
and the other forming the diaphragm moved by sound waves
[syn: condenser microphone, capacitor microphone]
cardioid microphone
(wn)
cardioid microphone
n 1: a directional microphone with a cardioid pattern of
sensitivity
condenser microphone
(wn)
condenser microphone
n 1: microphone consisting of a capacitor with one plate fixed
and the other forming the diaphragm moved by sound waves
[syn: condenser microphone, capacitor microphone]
crystal microphone
(wn)
crystal microphone
n 1: a microphone in which sound waves vibrate a piezoelectric
crystal that generates a varying voltage
directional microphone
(wn)
directional microphone
n 1: a microphone that is designed to receive sound from a
particular direction
microphone boom
(wn)
microphone boom
n 1: a pole carrying an overhead microphone projected over a
film or tv set [syn: boom, microphone boom]

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