蜜芽传媒

One of the earliest devices for playing music was created by American inventor Thomas Alva Edison in 1877. Known as a phonograph, it played back sounds via a stylus or needle following grooves in a cylindrical sheet of foil. In the late 1880s, Emil Berliner invented the gramophone, a modification of its predecessor that used grooves on a flat, rotating disk to play back recorded sounds. The music was reproduced and the sound amplified through the sound box, tone arm and sound horn. Stereo sound was introduced in the 1950s.

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