Is this the very first DJ system?
In 1903 French engineer Leon Gaumont was granted patents for loudspeaker systems to go with his sound on disc talking films, which used one of Berliner’s Gramophones. In 1910 Gaumont demonstrated his Chronophone system, which synchronised sound and film, at the Gaumont Palace in Paris. The compressed-air amplifier, whiuch he called the Eglephone, was just a part of the whole system. The volume was enough for an audience of 4000. Initially the longest moving picture that could be made with synchronised sound was only 200ft, due to the limited playing time of the Gramophone record. (Projection was at 16 frames…