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The phonograph is born

Thomas Alva Edison in the telephone message, according to film with the voices of vibration phenomena,

Invented by Thomas Edison and his early phonograph

Invented by Thomas Edison and his early phonograph

Tested short needle, get a lot of inspiration. Talk high or low speed can make corresponding different short needle vibrate. That, in turn, this vibration must also be able to issue the original voice. So he began to study voice problems.

On August 15, 1877, Thomas Alva Edison Assistant crith West pattern to make one large cylinder, crank, phones, and the membrane plate machine. Thomas Alva Edison, pointing the blame machine aide says: "this is a talking machine", he took out a piece of tin foil, engraved with the volume on the spiral fluted metal cylinder, pin rotation of one lightly with foil, and the other end of a telephone connection. Thomas Alva Edison crank, on the phone to sing "Mary had a little lamb, snowball like hair......." After singing, needle and put it back into place, light to crank again. Then, slowly, round and round the rotation of the machine, singing "Mary had a little lamb ... ...", exactly as sung by Thomas Alva Edison. Aside aides, met a talking machine was too surprised to say anything.

"Talking machine" news of the birth, created a stir in the world. In December 1877, the phonograph was Thomas Alva Edison public performances, outside opinion get him known as the "Science of Napoleon Bonaparte" is a 19th century three of the most exciting big

Specify one.

Americans tuomasi·aerba·aidisheng the phonograph was designed in 1877, is the oldest recording device in the world.

On December 6 of that year, Edison's Assistant, mechanic yuehan·keluxi produced the first prototype, and prototype recording of Edison's songs of the Mary's goat.