Tracing the source - pairing audio movies

Early sound films used projectors and phonographs working simultaneously to produce sound. In August 1926, the world's first audio short film "Tang Huang" adopted the Vitaphone sound system and achieved film sound and image synchronization through record recording and playback. In 1927, Warner Bros. released "The Jazz King," which not only included music but also added some dialogue, and is considered the first sound film in film history. Viewers can listen to and screen the music and clips of these audio movies, and pair them for playback.

The unit is designed for unsupervised public use: controls are recessed or shielded, moving parts are enclosed, and the interface is operable by a child of about six with no instruction. Where a screen is used, the language can be switched without changing the hardware, and the content can be replaced on site.

Sound movies refer to movies that are broadcast simultaneously with sound, as opposed to silent movies. In 1900, the first sound film was screened in Paris, and ten years later, reliable synchronized sound technology gradually matured and became commercially viable. In April 1923, the first synchronous sound film was released in New York. In October 1927, the first sound story film, the so-called silent film, often had music or sound effects accompanying it during its heyday. In August 1926, it was produced by John The film "Don Juan" starring Barrymore premiered at Warner Bros. Theatre in New York, using the Vitaphone sound system to synchronize the film's sound and image at 331/3 revolutions per second. New inventions soon followed, and in October 1927, Warner Bros. '"The Jazz King" sounded the death knell for silent films. The film uses the sound technology of Vitasoy, which is the first sound film technology officially adopted by Hollywood. It is a video audio separation technology developed by Xidian Corporation.