Phonofilm is an optical sound-on-film system developed by inventors Lee de Forest and Theodore Case in the early 1920s. In 1919 and 1920, de Forest, inventor...

premiered 18 Phonofilm short films at the independent Rivoli Theater in New York City. Starting in May 1924, Max and Dave Fleischer used the Phonofilm process...

("Finland's Thomas Edison"), who improved Phonofilm's amplification system to be audible in a large theater. Phonofilm was used mainly to record stage performances...

British Talking Pictures, which purchased the primary Phonofilm assets. By the end of 1930, the Phonofilm business would be liquidated. In Europe, others were...

was created using Powers' Cinephone system, which used Lee de Forest's Phonofilm system. Pat Powers' company distributed Steamboat Willie, which was an...

debuted his own Phonofilm sound-on-film system in New York City on April 15, 1923, but due to the relatively poor sound quality of Phonofilm and the impressive...

Informational notes This scene pays homage to the original 1921 DeForest Phonofilm demonstration, featuring DeForest explaining the system. This is a reference...

Tefiphon/Teficord (early 1930s), Tefifon Dictabelt (1947) Sound-on-film Phonofilm (1919) Tri-Ergon (1922) Movietone (1926) Photophone (1929) Fantasound...

Federal Radio Commission. On August 11, 1924, Theodore W. Case, using the Phonofilm sound-on-film process he developed for Lee de Forest, filmed Coolidge...

Ben Bernie and All the Lads, made in New York City with the De Forest Phonofilm sound-on-film system. In the 1920s, Levant recorded with the Ben Bernie...