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  2. en.wikipedia.org › wiki › Sound_filmSound film - Wikipedia

    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.

  3. The first commercial screening of movies with fully synchronized sound took place in New York City in April 1923. In the early years after the introduction of sound, films incorporating synchronized dialogue were known as "talking pictures," or " talkies.

  4. The first commercial feature film to have actual synchronized dialogue was the Warner Bros. movie “The Jazz Singer” starring Al Jolson. “The Jazz Singer” was released on October 6, 1927, and it contained both silent scenes and sound sequences (consisting of both synchronized singing and synchronized dialogue).

  5. In parallel, De Forest had started working on a sound on film process and in 1919 was awarded several patents that would lead to the first optical sound-on-film technology with commercial application, Phonofilm, later improved in cooperation with Theodor Case and Freeman Harrison Owens.

  6. In 1907, Eugene Lauste, born in France and resident in London, who had worked in Edison’s laboratory between 1886 and 1892, received the first sound technology patent on film, which involved changing sound into light waves that were recorded photographically directly on celluloid.

  7. By the early 1930s, the movie industry had almost universally adopted sound-on-film technology, in which the audio signal to be recorded was used to modulate a light source that was imaged onto the moving film through a narrow slit, allowing it to be photographed as variations in the density or width of a soundtrack running along a dedicated ...

  8. Major movie studios quickly developed three-track and four-track sound systems, and the first stereo sound recording for a commercial film was made by Judy Garland for the MGM movie Listen, Darling in 1938.