AC-4
E1046974
AC-4 is a next-generation Dolby audio codec designed to deliver efficient, high-quality sound for modern broadcast, streaming, and immersive audio applications.
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Dolby audio technology
ⓘ
audio codec ⓘ |
| applicationDomain |
broadcast engineering
ⓘ
consumer media ⓘ streaming media technology ⓘ |
| audioCodingType | next-generation audio codec ⓘ |
| bitstreamType | single unified bitstream ⓘ |
| compressionType | lossy audio compression ⓘ |
| designGoal |
high audio quality at low bitrates
ⓘ
high coding efficiency ⓘ robustness for broadcast environments ⓘ support for immersive and personalized audio ⓘ |
| developer | Dolby Laboratories NERFINISHED ⓘ |
| feature |
backward-compatible core and extensions
ⓘ
independent substreams for different presentations ⓘ low-latency decoding ⓘ support for advanced accessibility features ⓘ support for alternate audio tracks ⓘ support for interactive audio experiences ⓘ support for loudness and dynamic range metadata ⓘ support for multiple languages in one bitstream ⓘ |
| includedInStandard |
ATSC 3.0 audio system
ⓘ
DVB audio specifications ⓘ |
| standardizedBy | ETSI NERFINISHED ⓘ |
| standardNumber |
ETSI TS 103 190
NERFINISHED
ⓘ
ETSI TS 103 190-2 NERFINISHED ⓘ ETSI TS 103 190-3 NERFINISHED ⓘ |
| successorOf | Dolby Digital Plus NERFINISHED ⓘ |
| supports |
Dolby Atmos
NERFINISHED
ⓘ
advanced loudness control ⓘ broadcast audio ⓘ channel-based audio ⓘ dialogue enhancement ⓘ immersive audio ⓘ metadata-driven audio experiences ⓘ multiple presentations ⓘ object-based audio ⓘ personalized audio ⓘ streaming audio ⓘ |
| useCase |
OTT streaming services
ⓘ
digital television broadcasting ⓘ game consoles ⓘ home theater systems ⓘ mobile streaming ⓘ set-top boxes ⓘ smart TVs ⓘ soundbars ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.