dbx noise reduction
E1012037
dbx noise reduction is an analog audio noise-reduction system designed to improve the signal-to-noise ratio of tape recordings through broadband companding.
All labels observed (1)
| Label | Occurrences |
|---|---|
| dbx noise reduction canonical | 1 |
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
analog signal processing technology
ⓘ
audio noise reduction system ⓘ |
| aimsTo | improve signal-to-noise ratio of tape recordings ⓘ |
| appliesTo |
cassette tape
ⓘ
magnetic tape recording ⓘ open-reel tape ⓘ |
| benefit |
improved low-level detail audibility
ⓘ
significant noise reduction compared to unprocessed tape ⓘ |
| category |
audio engineering
ⓘ
sound recording technology ⓘ |
| competesWith | Dolby noise reduction NERFINISHED ⓘ |
| decodingProcess | expands dynamic range after playback ⓘ |
| designedFor |
high-speed, high-quality tape formats (Type I)
ⓘ
slower, consumer cassette formats (Type II) ⓘ |
| developer | dbx, Inc. NERFINISHED ⓘ |
| effect |
can reveal tape saturation artifacts if misaligned
ⓘ
increases effective dynamic range ⓘ reduces tape hiss ⓘ |
| encodingProcess | compresses dynamic range before recording ⓘ |
| feature |
broadband operation across the audio spectrum
ⓘ
dynamic range expansion on playback ⓘ encode-decode symmetry ⓘ high noise reduction amount compared to Dolby systems ⓘ level-dependent companding ⓘ |
| hasVariant |
dbx Type I
NERFINISHED
ⓘ
dbx Type II NERFINISHED ⓘ |
| influenced | later noise reduction and companding systems ⓘ |
| market |
consumer hi-fi
ⓘ
professional audio ⓘ |
| relatedTo |
compander
ⓘ
dynamic range compression ⓘ dynamic range expansion ⓘ |
| requires |
calibrated record and playback levels
ⓘ
consistent tape transport speed for accurate decoding ⓘ matching dbx encoder and decoder ⓘ proper tape formulation for optimal performance ⓘ |
| risk |
audible artifacts when played back without decoding
ⓘ
audible pumping or breathing if misused ⓘ |
| timePeriod | introduced in the 1970s ⓘ |
| usedFor |
music recording
ⓘ
speech recording ⓘ |
| usedIn |
consumer cassette decks
ⓘ
professional recording studios ⓘ semi-professional recording equipment ⓘ |
| usesPrinciple | broadband companding ⓘ |
| usesTechnique |
compression during recording
ⓘ
expansion during playback ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.