Microphone
['maɪkrəfəʊn] or ['maɪkrə'fon]
Definition
(noun.) device for converting sound waves into electrical energy.
Typist: Meg--From WordNet
Definition
(n.) 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.
Typed by Clint
Definition
n. an instrument which renders the faintest sounds distinctly audible.—adjs. Microphon′ic Microph′onous.—n. Mī′crophony.
Typed by Jeanette
Examples
- This apparatus was called the microphone, and was in reality but one of the many forms that it is possible to give to the telephone transmitter. Frank Lewis Dyer. Edison, His Life and Inventions.
- Professor Hughes spent an afternoon in examining the apparatus, and in about a month came out with his microphone, which was absolutely nothing more nor less than my exact invention. Frank Lewis Dyer. Edison, His Life and Inventions.
- Indeed, even the platinum point, which in the early form of the Reis transmitter pressed against the platinum contact cemented to the centre of the diaphragm, was a microphone. Frank Lewis Dyer. Edison, His Life and Inventions.
- The utility of the telephone has been greatly increased by the inventions of Hughes and Edison of the _microphone_. William Henry Doolittle. Inventions in the Century.
- For example, the Edison granular transmitter was a variety of microphone, as was also Edison's transmitter, in which the solid button of carbon was employed. Frank Lewis Dyer. Edison, His Life and Inventions.
Typed by Aldo