Vitaphone

Vitaphone was a sound film technology used by Warner Bros. and its sister studio First National from 1926 to 1931. Notable Vitaphone feature films include The Jazz Singer and The Singing Fool.

Vitaphone was the only analog sound-on-disc system to achieve widespread use or commercial success. Modern sound film methods print the soundtrack directly onto the film itself. Vitaphone discs were recorded at 33⅓ rpm and 16″ in diameter. They were played on a turntable coupled to the projector motor as the film was projected.

The Internet Archive includes a Collection of Vitaphone Soundtracks 1926–1931.

Below is a demonstration video on Vitaphone first shown to the New York Electrical Society on October 27, 1926.