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First phonograph
Made by Édouard-Léon Scott de Martinville was a device that took recordings of sound waves on a glass plate, but it was not able to play back the sounds -
Thomas Edisons phonograph
this was the first phonograph that could record and play back sound -
demonstrating the phonograph
Thomas Edison demonstrated the phonograph to the National Academy of Science -
the phonograph redesign
an inventor named Emile Berliner reengineered the phonograph and used a flat disc instead of a cylinder and called it a gramophone -
making it affordable
this is when the spring motor phonograph was offered at affordable prices, this allowed it to become a household object. -
mass production
mass production of wax cylinders allows artists to record more songs -
Electrically amplified phonographs
Electrically amplified phonographs are developed, this improves the clarity and accuracy of sound -
vinyl long-playing record
the company RCA Victor launched the first vinyl long-playing record, the playback speed for this record was 33⅓ rpm instead of 78 rpm. So it could store around 20 minutes per side instead of 3 - 5 minutes