Phonofilm sound-on-film process

URI: https://gptkb.org/entity/Phonofilm_sound-on-film_process
GPTKB entity
Statements (24)
Predicate Object
gptkbp:instanceOf sound-on-film technology
gptkbp:commercialSuccess limited
gptkbp:competitor gptkb:Movietone
gptkb:Vitaphone
gptkbp:countryOfOrigin gptkb:United_States
gptkbp:firstDemonstrated gptkb:Rivoli_Theater,_New_York_City
gptkbp:historicalSignificance early sound film technology
https://www.w3.org/2000/01/rdf-schema#label Phonofilm sound-on-film process
gptkbp:introducedIn 1923
gptkbp:inventedBy gptkb:Lee_de_Forest
gptkbp:notableFilm gptkb:A_Few_Moments_with_Eddie_Cantor,_Star_of_'Kid_Boots'
gptkb:President_Coolidge,_Taken_on_the_White_House_Grounds
gptkbp:notablePerson gptkb:Theodore_Case
gptkb:E._E._Kellogg
gptkbp:patent 1922
gptkbp:precededBy silent film
gptkbp:recordedAt 35mm film
gptkbp:soundRecordedAs variable-density optical track
gptkbp:successor gptkb:Movietone_sound_system
gptkbp:technology optical sound recording
gptkbp:usedBy gptkb:De_Forest_Phonofilm_company
gptkbp:usedFor synchronizing sound with motion pictures
gptkbp:bfsParent gptkb:De_Forest_Phonofilm_Company
gptkbp:bfsLayer 6