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The Phonograph

Phonograph, also known as record player, electromechanical instrument for reproducing sound from a record. A record is a vinyl disk that has a spiral groove with tiny bumps on the walls of the groove; the bumps encode a musical or other type of recording. The phonograph has fo ....

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.... had intended the phonograph to be used primarily as a dictating machine in offices. However, with the invention of the flat-disk phonograph, or gramophone, by the German-born American inventor Emile Berliner in 1887, the phonograph began to develop as an artistic medium for recording the great singers and musical instrumentalists of the time. The gramophone played records at 78 rpm, and the needle moved laterally (from side to side) in a groove of even depth. Like the cylinder phonographs, it reproduced sound with a needle whose mechani ....

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