Editing has evolved significantly over time from early films with no editing to modern techniques. Early films had no editing and were single shots showing activity. The Lumiere brothers developed the first motion picture camera and projector. Edwin Porter introduced dissolves between shots in 1903. D.W. Griffith developed continuity editing to seamlessly match shots. Soviet montage editing used collision of shots to convey ideas. Sound editing began with recordings and The Jazz Singer in 1927 introduced synchronized dialogue. Modern editing is done digitally on computers with advanced software.