| Y/M/D | Description | Place |
|---|---|---|
| 1925/00/00 | In late 1925, Sam Warner convinces his brothers at Warner Brothers Pictures to invest $1.25 million to design and build a theater to feature their new film sound synchronization technology, Vitaphone. | Warner Pacific Theatre, Los Angeles |
| 1925/06/00 | Theodore Case directs vaudevillian Gus Visser and his singing duck. | Dr Sylvester Willard Mansion, Auburn, NY |
| 1927/10/00 | California's first permanently installed movie sound system, the Vitaphone, is installed at The Alhambra just after the theater's opening. | Alhambra Theatre, Sacramento |
| 1927/10/06 | "The Jazz Singer", the first feature motion picture with a synchronized music score and singing, starring Al Jolson is released Warner Bros Pictures. | Executive Office Building, Old Warner Brothers Studio, Los Angeles |
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