Subband Codec
E486616
Subband Codec (SBC) is an audio compression format commonly used over Bluetooth for efficiently transmitting medium-quality stereo sound with relatively low computational complexity.
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
Bluetooth audio codec
ⓘ
audio compression format ⓘ |
| abbreviation | SBC ⓘ |
| basedOn |
adaptive bit allocation
ⓘ
filter bank subband decomposition ⓘ scale factor quantization ⓘ |
| comparedWith |
AAC
NERFINISHED
ⓘ
LC3 NERFINISHED ⓘ LDAC NERFINISHED ⓘ aptX NERFINISHED ⓘ |
| designedFor |
low-complexity decoder implementation
ⓘ
real-time audio streaming ⓘ |
| developedBy | Bluetooth Special Interest Group NERFINISHED ⓘ |
| encodedAs | frames with header, scale factors, and subband samples ⓘ |
| hasLimitation |
fixed frame structure
ⓘ
medium audio quality compared to modern codecs ⓘ |
| hasProperty |
lossy compression
ⓘ
low computational complexity ⓘ subband coding ⓘ supports joint stereo ⓘ supports mono audio ⓘ supports multichannel configurations up to 2 channels in A2DP ⓘ supports stereo audio ⓘ |
| introducedIn | Bluetooth 1.2 era ⓘ |
| mandatoryIn | Bluetooth A2DP profile NERFINISHED ⓘ |
| standardizedIn | Bluetooth A2DP specification NERFINISHED ⓘ |
| supportsAllocationMethod |
SNR
ⓘ
loudness ⓘ |
| supportsBitpoolRange | 2 to 250 ⓘ |
| supportsBlockLength |
12
ⓘ
16 ⓘ 4 ⓘ 8 ⓘ |
| supportsChannelMode |
dual channel
ⓘ
joint stereo ⓘ mono ⓘ stereo ⓘ |
| supportsSampleRate |
16000 Hz
ⓘ
32000 Hz ⓘ 44100 Hz ⓘ 48000 Hz ⓘ |
| supportsSubbands |
4
ⓘ
8 ⓘ |
| typicalBitrateRange | 192 kbit/s to 345 kbit/s for stereo at 44.1 kHz ⓘ |
| usedFor |
compressing digital audio
ⓘ
medium-quality stereo sound ⓘ transmitting audio over Bluetooth ⓘ |
| usedIn |
Bluetooth car audio systems
ⓘ
Bluetooth headphones ⓘ Bluetooth headsets ⓘ Bluetooth speakers ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.