Theodore Case Sound Test: Gus Visser and His Singing Duck (1925)

Theodore Case Sound Test: Gus Visser and his Singing Duck (1925), also known as Gus Visser and His Singing Duck, is an early sound film, directed by Theodore Case while perfecting his variable density sound-on-film process. Case began working on his sound film process at the Case Research Lab in Auburn, New York, in 1921. There are as many as three separate takes of Mr. Visser's act that exist. The film was shown in June 1925 at the Exposition of Progress in Auburn.

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