Dolby Stereo
E10319
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.
All labels observed (6)
| Label | Occurrences |
|---|---|
| Dolby Surround | 8 |
| Dolby Stereo canonical | 6 |
| Dolby SVA | 1 |
| Dolby Stereo (analog matrix system) | 1 |
| Dolby System | 1 |
| Dolby motion picture sound systems | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T93328 — 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: Dolby Stereo Context triple: [Ray Dolby, notableFor, Dolby Stereo]
-
A.
Ray Dolby
Ray Dolby was an American engineer and inventor best known for pioneering noise reduction and surround sound technologies that revolutionized the audio industry.
-
B.
Audion
Audion is an early triode vacuum tube invented by Lee de Forest that enabled the amplification of electrical signals and was crucial to the development of radio and electronics.
-
C.
Ampex
Ampex is an American electronics company renowned for pioneering professional audio and video tape recording technology.
-
D.
IMAX
IMAX is a high-resolution large-format cinema technology known for its giant screens, immersive sound, and specialized cameras used for premium theatrical presentations.
-
E.
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.
- 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: Dolby Stereo Target entity description: 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.
-
A.
Ray Dolby
Ray Dolby was an American engineer and inventor best known for pioneering noise reduction and surround sound technologies that revolutionized the audio industry.
-
B.
Audion
Audion is an early triode vacuum tube invented by Lee de Forest that enabled the amplification of electrical signals and was crucial to the development of radio and electronics.
-
C.
Ampex
Ampex is an American electronics company renowned for pioneering professional audio and video tape recording technology.
-
D.
IMAX
IMAX is a high-resolution large-format cinema technology known for its giant screens, immersive sound, and specialized cameras used for premium theatrical presentations.
-
E.
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.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
film sound system
ⓘ
multichannel audio format ⓘ |
| alsoKnownAs |
Dolby SVA
ⓘ
linked to:
Dolby Stereo
|
| applicationDomain | motion picture sound ⓘ |
| audioChannels | 4-channel ⓘ |
| category |
cinema audio technology
ⓘ
surround sound formats ⓘ |
| centerChannelPurpose | dialogue localization ⓘ |
| channelConfiguration |
Center
ⓘ
Left ⓘ Right ⓘ Surround ⓘ |
| commercialStatus | proprietary system ⓘ |
| compatibility | mono optical projectors (downmix) ⓘ |
| countryOfOrigin |
United States
ⓘ
linked to:
United States of America
|
| decodingMethod | matrix decoding ⓘ |
| designedFor | optical soundtracks on film prints ⓘ |
| developer | Dolby Laboratories ⓘ |
| earlyNotableFilm |
Close Encounters of the Third Kind (1977 film)
ⓘ
Star Wars (1977 film) ⓘ
linked to:
Star Wars: Episode IV – A New Hope
|
| encodingMethod |
matrix encoding
ⓘ
two-channel optical track with matrixed four channels ⓘ |
| eraOfWidespreadUse |
1980s
ⓘ
late 1970s ⓘ |
| feature |
backward compatibility with mono optical readers
ⓘ
compatibility with standard two-channel optical tracks ⓘ high-fidelity audio ⓘ |
| firstMajorReleaseUsingFormat | A Star Is Born (1976 film) ⓘ |
| goal |
improve sound quality in movie theaters
ⓘ
provide surround-capable audio using existing optical tracks ⓘ |
| influenced | home surround formats such as Dolby Surround ⓘ |
| introducedInDecade | 1970s ⓘ |
| introducedYear | 1975 ⓘ |
| marketedAs |
Dolby System
ⓘ
linked to:
Dolby Stereo
|
| opticalSoundtrackType | analog optical ⓘ |
| primaryMedium | 35 mm film ⓘ |
| primaryUse | cinema exhibition ⓘ |
| supersededBy |
Dolby Digital
ⓘ
Dolby SR ⓘ |
| supports | surround sound ⓘ |
| supportsPlaybackOn | cinema sound systems ⓘ |
| surroundChannelPurpose | ambient and effects sound ⓘ |
| surroundChannelType | single mono surround channel ⓘ |
| SVAExpansion | Stereo Variable-Area ⓘ |
| usesTechnology |
Dolby A-type noise reduction
ⓘ
Dolby noise reduction ⓘ
linked to:
Dolby Laboratories
|
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: Dolby Stereo Description of subject: 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.
Referenced by (18)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Dolby Stereo
linked to: Dolby Stereo
linked to: Dolby Stereo
linked to: Dolby Stereo
linked to: Dolby Stereo
linked to: Dolby Stereo
linked to: Dolby Stereo
linked to: Dolby Stereo
subject linked to:
Sex and the City (TV series)
linked to: Dolby Stereo
linked to: Dolby Stereo
linked to: Dolby Stereo
linked to: Dolby Stereo