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)
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| status | largely superseded by later Dolby systems ⓘ |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 ⓘ |
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