Case sound-on-film system
E127976
The Case sound-on-film system was an early motion picture technology that recorded synchronized audio directly onto film, helping pave the way for the era of talking movies.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Case sound-on-film system canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1110934 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Case sound-on-film system Context triple: [Theodore Case, developed, Case sound-on-film system]
-
A.
Dolby A-type noise reduction
Dolby A-type noise reduction is a professional analog audio noise reduction system developed by Dolby Laboratories to reduce tape hiss in recording and film sound.
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B.
Dolby Stereo
Dolby Stereo is a multichannel optical sound system for film that brought high-fidelity, surround-capable audio to movie theaters in the 1970s and 1980s.
-
C.
Dolby Headphone
Dolby Headphone is an audio technology that simulates multi-channel surround sound over standard stereo headphones to create an immersive listening experience.
-
D.
Vitaphone
Vitaphone was an early sound-on-disc motion picture system developed by Warner Bros. that played a key role in the transition from silent films to “talkies” in the late 1920s.
-
E.
Dolby SR
Dolby SR is an advanced professional analog noise reduction system developed by Dolby Laboratories to significantly improve the dynamic range and sound quality of film and audio recordings.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Case sound-on-film system Target entity description: The Case sound-on-film system was an early motion picture technology that recorded synchronized audio directly onto film, helping pave the way for the era of talking movies.
-
A.
Dolby A-type noise reduction
Dolby A-type noise reduction is a professional analog audio noise reduction system developed by Dolby Laboratories to reduce tape hiss in recording and film sound.
-
B.
Dolby Stereo
Dolby Stereo is a multichannel optical sound system for film that brought high-fidelity, surround-capable audio to movie theaters in the 1970s and 1980s.
-
C.
Dolby Headphone
Dolby Headphone is an audio technology that simulates multi-channel surround sound over standard stereo headphones to create an immersive listening experience.
-
D.
Vitaphone
Vitaphone was an early sound-on-disc motion picture system developed by Warner Bros. that played a key role in the transition from silent films to “talkies” in the late 1920s.
-
E.
Dolby SR
Dolby SR is an advanced professional analog noise reduction system developed by Dolby Laboratories to significantly improve the dynamic range and sound quality of film and audio recordings.
- F. None of above. chosen
Statements (36)
| Predicate | Object |
|---|---|
| instanceOf |
early synchronized sound system
ⓘ
motion picture sound technology ⓘ sound-on-film system ⓘ |
| acquiredBy | Fox Film Corporation ⓘ |
| basedOn | optical recording of sound waves ⓘ |
| category |
audio recording technology
ⓘ
cinematography equipment ⓘ |
| commercializedBy | Fox Film Corporation ⓘ |
| componentOf | Movietone sound-on-film process ⓘ |
| contributedTo | transition from silent films to talking pictures ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| developedBy |
Case Research Laboratory
ⓘ
Theodore Case ⓘ |
| developmentLocation | Auburn, New York ⓘ |
| distinguishedFrom | sound-on-disc systems ⓘ |
| encodingMethod | variable-density optical soundtrack ⓘ |
| era | late 1920s ⓘ |
| field |
cinema sound
ⓘ
film technology ⓘ |
| followedBy | later optical sound-on-film systems ⓘ |
| hasPart |
light-valve recording device
ⓘ
photoelectric cell pickup ⓘ |
| historicalSignificance | helped establish practical talking motion pictures ⓘ |
| influenced | Fox Movietone sound system ⓘ |
| innovation | reliable light-valve for sound recording on film ⓘ |
| medium | 35 mm motion picture film ⓘ |
| namedAfter | Theodore Case ⓘ |
| notableFor |
enabling synchronized dialogue in films
ⓘ
recording sound directly onto film ⓘ |
| precededBy | silent film technology ⓘ |
| soundReproductionType | optical sound ⓘ |
| timePeriod | 1920s ⓘ |
| usedFor |
recording synchronized sound for motion pictures
ⓘ
sound-on-film recording ⓘ |
| usedIn |
early Fox Movietone newsreels
ⓘ
early sound feature films by Fox ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Case sound-on-film system Description of subject: The Case sound-on-film system was an early motion picture technology that recorded synchronized audio directly onto film, helping pave the way for the era of talking movies.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.