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Low Latency High-Definition Audio Codec (LHDC) is an audio codec technology developed by Savitech.LHDC allows high-resolution audio streaming over Bluetooth.It is a high-quality Bluetooth codec based on the A2DP Bluetooth protocol and allows a bit-rate of up to 900 kbit/s compared to SBC's bit rate of 345 kbit/s .
For the Bluetooth Low Energy stack, according to Bluetooth 4.0 a special set of profiles applies. A host operating system can expose a basic set of profiles (namely OBEX, HID and Audio Sink) and manufacturers can add additional profiles to their drivers and stack to enhance what their Bluetooth devices can do. Devices such as mobile phones can ...
SBC, or low-complexity subband codec, is an audio subband codec specified by the Bluetooth Special Interest Group (SIG) for the Advanced Audio Distribution Profile (A2DP). [1] SBC is a digital audio encoder and decoder used to transfer data to Bluetooth audio output devices like headphones or loudspeakers. It can also be used on the Internet. [2]
The Windows XP and Windows Vista/Windows 7 Bluetooth stacks support the following Bluetooth profiles natively: PAN, SPP, DUN, HID, HCRP. The Windows XP stack can be replaced by a third party stack that supports more profiles or newer Bluetooth versions. The Windows Vista/Windows 7 Bluetooth stack supports vendor-supplied additional profiles ...
The aptX audio codec is used for consumer and automotive wireless audio applications, notably the real-time streaming of lossy stereo audio over the Bluetooth A2DP connection/pairing between a "source" device (such as a smartphone, tablet or laptop) and a "sink" accessory (e.g. a Bluetooth stereo speaker, headset or headphones).
LDAC is an alternative to Bluetooth SIG's SBC codec. Its main competitors are Huawei's L2HC, Qualcomm's aptX-HD/aptX Adaptive and the HWA Union/Savitech's LHDC. [1]LDAC utilizes a type of lossy compression [2] [3] by employing a hybrid coding scheme based on the modified discrete cosine transform [4] and Huffman coding [5] to provide more efficient data compression.
LPDDR3 Dual-channel 32-bit (64-bit) 533 MHz (8.6 GB/s) APQ8064T Snapdragon 600 [83] LPDDR3 Dual-channel 32-bit (64-bit) 600 MHz (9.6 GB/s) APQ8064AB Snapdragon 600 [83] 4 cores up to 1.9 GHz Krait 300 Adreno 320 450 MHz (86.4 GFLOPS in FP32) MSM8936 Snapdragon 610 [84] 4 cores up to 1.7 GHz Cortex-A53: Adreno 405 550 MHz (52.8 GFLOPS in FP32)
ITU-T G.711 PCM A-Law audio 64 kbit/s RFC 3551 9 G722 audio 1 8000 [note 2] any 20 ITU-T G.722 audio 64 kbit/s RFC 3551 10 L16 audio 2 44100 any 20 Linear PCM 16-bit Stereo audio 1411.2 kbit/s, [3] [4]: 62 [5]: 18 uncompressed RFC 3551, Page 27: 11 L16 audio 1 44100 any 20 Linear PCM 16-bit audio 705.6 kbit/s, uncompressed RFC 3551, Page 27: 12