Bluetooth LE Audio / AURACAST 

Bluetooth LE Audio  = BLE + LC3 = AURACAST

LC3 = Low Complexity Communications Codec

 

Bluetooth LE / BLE IoT

 

Bluetooth Classic Audio

Bluetooth Classic Audio = Bluetooth Classic + SBC / AAC / LDAC / aptX

SBC = Subband Codec

AAC = Advanced Audio Coding

LDAC = SONY Proprietary Audio Coding

aptX = Audio Processing Technology

 

Feature	Bluetooth Classic	Bluetooth Low Energy (BLE)
Power consumption	High (approx 1W)	Low (approx 0.01W-0.5W)
Communication Range	10m to 30m	10m to 30m
Latency	100 ms	6 ms
Data Rate	1Mbps for BR 2-3Mbps for EDR	500kbps-1Mbps
RF Bandwidth	2.4 GHz ISM band (2400-2483.5 MHz)	2.4 GHz ISM band (2400-2483.5 MHz)
Modulation Technique	GFSK for BR 8-DPSK or π/4-DQPSK for EDR	GFSK
Number of Channels	79 channels each of width 1Mhz	40 channels each of width 2MHz
Spreading	Frequency Hopping Spread Spectrum (FHSS)	Frequency Hopping Spread Spectrum (FHSS)
Data link layer protocol	Time Division Multiple Access (TDMA)	Time Division Multiple Access (TDMA)
Error detection	8 bit CRC or 16 bit CRC, and ACKs	24 bit CRC, ACKs
Maximum number of active slaves	7	Unlimited
Communication Direction	Bidirectional	Unidirectional
Device Pairing	Required	Not Required