Linked from
The 20 pages that link to Vitaphone, each with the reason it gives.
The Jazz SingerRelated: Warner Bros. used Vitaphone to synchronize the film’s songs and dialogue.
Film musicRelated: Vitaphone was one early technology for synchronizing music and film.
SoundtrackRelated: Vitaphone linked film playback to recorded music and speech.
Al JolsonRelated: Vitaphone enabled The Jazz Singer’s synchronized performance sequences.
Warner Bros. PicturesRelated: Warner Bros. used it to establish synchronized sound in feature films.
Sam WarnerBroader topic: Sam backed this system as Warner Bros. pursued feature-length sound films.