The Phono-Cinema-Theater is a system of film projection developed in the late xix th century by Henri Lioret of France and Clement Maurice Gratioulet . It consisted of synchronizing the voices of the actors, recorded on a cylinder phonograph , with the projected images. In particular, it allowed the presentation of short films at the 1900 Universal Exhibition in Paris . It was during this exhibition that the first public presentation of films combining images and sound took place.
Among the films in Phono Cinema Theater, mention may be made Cyrano de Bergerac and The Duel Hamlet of Clément Maurice .