thomas edison made possible the first reproduction of the human voice on the phonograph.
who made possible the first reproduction of the human voice on the phonograph?
thomas edison
in 1888 douglass saw a phonograph for the first time and was fascinated. he made his own and took it to omaha to show it to e.a. benson, president of the nebraska phonograph co., who hired him as the company’s agent for the western part of the state. in 1889 he invented a nickel-in-the-slot attachment for the phonograph. benson paid $500 for the patent and promoted douglass to a job with the chicago central phonograph company, which he also owned and that was part of the thomas edison-affiliated north american phonograph company, distributor for the edison phonograph. in the early 1890s douglass invented a machine for duplicating phonograph cylinders and became known as "duplicate doug." he sold this patent to edward easton, director of the american graphophone company and president of the columbia phonograph company, moved to washington d.c. and worked for easton briefly before returning to the chicago central phonograph company as a manager in 1892. he was elected vice president and treasurer, and secured a concession for a hundred slot phonographs at the world's columbian exposition, better known as the 1893 chicago world's fair. at the fair he also met peter bacigalupi of lima, peru and san francisco; he shipped phonographs to lima for him and later traveled to san francisco where he met his step-sister victoria adams, whom he married in 1897. after the chicago fair closed, douglass bought the hundred slot phonographs and secured a concession for the 1894 midwinter fair in san francisco; this concession and the phonographs were ultimately taken over by bacigalupi, who then used the machines to open a phonograph arcade on market street.
leon douglass
section::::electric sound recording and reproduction.:phonautograph.





























the first device that could record actual sounds as they passed through the air (but could not play them back—the purpose was only visual study) was the phonautograph, patented in 1857 by parisian inventor édouard-léon scott de martinville. the earliest known recordings of the human voice are phonautograph recordings, called "phonautograms", made in 1857. they consist of sheets of paper with sound-wave-modulated white lines created by a vibrating stylus that cut through a coating of soot as the paper was passed under it.





























section::::electric sound recording and reproduction.:phonograph.





























section::::electric sound recording and reproduction.:phonograph.:phonograph cylinder.
music technology (electric)