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Phonograph

7:58

Phonograph vs. Gramophone - The Invention of Sound Recording Part 1 I THE INDUSTRIAL REVOLUTION

3:44

edison the man / tinfoil phonograph test

5:18

PHONOGRAPH: What is it?

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History of Music Players - Phonograph to Smartphone 1878-2018

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How the Cylinder Phonograph Works

The phonograph is a device for the mechanical recording and reproduction of sound. In its later forms, it is also called a gramophone or, since the 1940s, a record player. The sound vibration waveforms are recorded as corresponding physical deviations of a spiral groove engraved, etched, incised, or impressed into the surface of a rotating cylinder or disc, called a "record". To recreate the sound, the surface is similarly rotated while a playback stylus traces the groove and is therefore vibrated by it, very faintly reproducing the recorded sound. In early acoustic phonographs, the stylus vibrated a diaphragm which produced sound waves which were coupled to the open air through a flaring horn, or directly to the listener's ears through stethoscope-type earphones.