ahlam1399
05-23-2017, 07:25 AM
In the late 19th century, French inventor Edouard-Leon Scott de Martinville patented the earliest k**wn sound recording device. But his accomplishments were only recognized recently.
أكثر... (http://www.npr.org/sections/alltechconsidered/2017/05/22/529550254/at-the-dawn-of-recorded-sound-**-one-cared?utm_medium=RSS&utm_campaign=news)
أكثر... (http://www.npr.org/sections/alltechconsidered/2017/05/22/529550254/at-the-dawn-of-recorded-sound-**-one-cared?utm_medium=RSS&utm_campaign=news)