Although sound recordings could be made and re-played in the 1870s, it wasn't possible to duplicate them for another ten years.

Question

Quizplus · Accepted Answer

The ability to make sound recordings began with the invention of the phonograph by Thomas Edison in 1877, but the technology to duplicate these recordings efficiently did not emerge until the development of the gramophone disc in the late 1880s.

Although Sound Recordings Could Be Made and Re-Played in the 1870s