Dolby A-type noise reduction
E63060
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.
All labels observed (6)
How this entity was disambiguated
This entity first appeared as the object of triple T497221 — 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 A-type noise reduction Context triple: [Dolby Stereo, usesTechnology, Dolby A-type noise reduction]
-
A.
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.
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B.
Dolby Laboratories
Dolby Laboratories is an American company renowned for pioneering audio noise reduction and surround sound technologies used in cinemas, home entertainment, and consumer electronics worldwide.
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C.
Dolby Digital 5.1
Dolby Digital 5.1 is a surround sound audio format that delivers multichannel cinematic audio through five full-bandwidth speakers and one low-frequency effects channel.
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D.
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.
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E.
THX
THX is an audio and visual certification and standards company known for ensuring high-fidelity sound and picture quality in cinemas, home theaters, and consumer electronics.
- 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 A-type noise reduction Target entity description: 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.
-
A.
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.
-
B.
Dolby Laboratories
Dolby Laboratories is an American company renowned for pioneering audio noise reduction and surround sound technologies used in cinemas, home entertainment, and consumer electronics worldwide.
-
C.
Dolby Digital 5.1
Dolby Digital 5.1 is a surround sound audio format that delivers multichannel cinematic audio through five full-bandwidth speakers and one low-frequency effects channel.
-
D.
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.
-
E.
THX
THX is an audio and visual certification and standards company known for ensuring high-fidelity sound and picture quality in cinemas, home theaters, and consumer electronics.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
audio noise reduction system
ⓘ
professional analog audio technology ⓘ |
| appliedTo |
low-level high-frequency content
ⓘ
mid-frequency bands ⓘ |
| bandCount | 4 ⓘ |
| characteristic |
frequency-selective processing
ⓘ
level-dependent compression and expansion ⓘ |
| componentOf |
Dolby Stereo
ⓘ
surface form:
Dolby motion picture sound systems
|
| developer | Dolby Laboratories ⓘ |
| distinguishedFrom |
Dolby B noise reduction
ⓘ
Dolby C noise reduction ⓘ Dolby SR ⓘ
surface form:
Dolby SR noise reduction
|
| effectOnProgramMaterial | reduces background hiss without significantly affecting wanted signal ⓘ |
| field |
audio engineering
ⓘ
film sound ⓘ sound recording ⓘ |
| frequencyRange | approximately 80 Hz to 15 kHz ⓘ |
| implementationForm |
integrated modules in mixing consoles
ⓘ
outboard rack units ⓘ |
| introducedBy | Ray Dolby ⓘ |
| introducedInDecade | 1960s ⓘ |
| introducedYearApproximate | 1965 ⓘ |
| marketSegment | professional audio ⓘ |
| medium | analog magnetic tape ⓘ |
| noiseReductionAmount | up to about 10 dB per band ⓘ |
| notDesignedFor | consumer cassette decks ⓘ |
| processingMethod |
decode during playback
ⓘ
encode during recording ⓘ |
| processingType | multiband ⓘ |
| purpose |
improve signal-to-noise ratio
ⓘ
reduce tape hiss ⓘ |
| requires | matched encoder and decoder ⓘ |
| status | largely superseded by later Dolby systems ⓘ |
| successor |
Dolby B noise reduction
ⓘ
Dolby SR ⓘ |
| technologyType | compander ⓘ |
| totalNoiseReduction | up to about 15 dB ⓘ |
| typicalUseCase |
dialogue and effects tracks in film
ⓘ
multitrack music recording ⓘ |
| use |
broadcast audio chains
ⓘ
film post-production ⓘ professional recording studios ⓘ |
| usedWith |
35 mm optical film soundtracks
ⓘ
magnetic film soundtracks ⓘ multitrack tape recorders ⓘ stereo master recorders ⓘ |
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 A-type noise reduction Description of subject: 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.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Dolby Noise Reduction
this entity surface form:
Dolby noise reduction system
this entity surface form:
Dolby A noise reduction
this entity surface form:
Dolby A noise reduction
this entity surface form:
Dolby Laboratories first professional noise reduction system
this entity surface form:
Dolby professional noise reduction family