Momente din istoria înregistrării şi redării sunetului

Abstract

An important moment in the history of recording and playing back the sounds is the sound recording on a steel wire. Starting from Oberlin Smith’s idea, the danish engineer Valdemar Poulsen (1869-1942) invents telegraphone (in 1890), the first machine that made magnetic recording on steel wire. In 1925, the german inventor Curt Stille (1873-1957) perfected the invention of the scientist Valdemar Poulsen, developing a magnetic recording device called mnemophon, one of the precursors of the tape recorder.