an Entity references as follows:
Édouard-Léon Scott de Martinville ([e.dwaʁ.le.ɔ̃ skɔt də maʁ.tɛ̃.vil]; 25 April 1817 – 26 April 1879) was a French printer, bookseller and inventor. He invented the earliest known sound recording device, the phonautograph, which was patented in France on 25 March 1858.