1. Who invented the phonograph
Sound is closely related to us human beings, and we feel the charm of sound almost all the time. Similarly, people use voice to communicate in life, but the voice will disappear. If you want to keep the desired voice, you need to rely on various tools, and the phonograph is one of them. Many friends know about the phonograph, but they may not know who the inventor of the phonograph is. Let me give you a brief introduction.
The inventor of the phonograph is generally considered to be Thomas Alva Edison, but before Edison, there were also some people who contributed to the invention of the phonograph.
The first phonograph recording device invented was the sonic vibrometer, invented by the Frenchman Scott-de-Martinville, which can transcribe sound into a visual medium, but cannot Played later; in 1877 a French scientist, Charles Cross, proposed a principle for the phonograph, but he did not build a model, his principle was submitted to the French Academy of Sciences and published in December 1877, by then , Edison has processed a model. Therefore, the phonograph is believed to have been invented by Edison.
Second, the invention of the phonograph
On November 21, 1877, American inventor Edison announced that he had invented the first A phonograph – a device for recording and reproducing sound, which he demonstrated for the first time on November 29 (patented February 19, 1878).
Three, the story of the origin of the phonograph
It is said that the invention of the phonograph came about by chance. Research automatic transceivers. It is said that he recorded the telegram with engraving on the circular cardboard. When the circular cardboard was rotated, the engraving made the small needle move up and down, and the needle was linked with the electromagnetic switch, so that the telegram could be automatically folded.
During his research, he noticed this wonderful phenomenon. As long as the circular cardboard was turned rapidly, the scribing needle would make a changing sound, as if the engraving on the circular cardboard made the scribing needle vibrate. . Edison immediately intuitively thought, “If this engraving matches the human voice, can’t the human voice be reproduced?” Rotating in the horizontal direction, the person speaks loudly to the diaphragm, and the scribing needle can leave an engraving on the tin foil. During the rotation of the cylinder, the stylus moves laterally relative to the cylinder little by little. He kept experimenting for 5 days and 5 nights, and finally made the phonograph.
In the first-ever phonograph experiment, Edison sang the children’s song “Mary’s Sheep” aloud to the diaphragm, and the sound was reproduced exactly like Edison’s, thus proclaiming the phonograph’s come out.
