Vitaphone in the context of "The Jazz Singer"

A sound film is a motion picture with synchronized sound, or sound technologically coupled to image, as opposed to a silent film. The first known public exhibition of projected sound films took place in Paris in 1900, but decades passed before sound motion pictures became commercially practical. Reliable synchronization was difficult to achieve with the early sound-on-disc systems, and amplification and recording quality were also inadequate. Innovations in sound-on-film led to the first commercial screening of short motion pictures using the technology, which took place in 1923. Before sound-on-film technology became viable, soundtracks for films were commonly played live with organs or pianos.

The primary steps in the commercialization of sound cinema were taken in the mid-to-late 1920s. At first, the sound films which included synchronized dialogue, known as "talking pictures", or "talkies", were exclusively shorts. The earliest feature-length movies with recorded sound included only music and effects. The first feature film originally presented as a talkie (although it had only limited sound sequences) was The Jazz Singer, which premiered on October 6, 1927. A major hit, it was made with Vitaphone, which was at the time the leading brand of sound-on-disc technology. Sound-on-film, however, would soon become the standard for talking pictures.

St. Louis Park is a city in Hennepin County, Minnesota, United States. The population was 50,010 at the 2020 census. It is a first-ring suburb immediately west of Minneapolis. Other adjacent cities include Edina, Golden Valley, Minnetonka, Plymouth, and Hopkins.

The Pavek Museum of Broadcasting, which has a major collection of antique radio and television equipment, is also in the city. Items range from radios produced by local manufacturers to the Vitaphone system used to cut discs carrying audio for the first "talkie", The Jazz Singer.