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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 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).
LC3 (Low Complexity Communication Codec) is an audio codec specified by the Bluetooth Special Interest Group (SIG) for the LE Audio audio protocol introduced in Bluetooth 5.2. [1] It's developed by Fraunhofer IIS and Ericsson as the successor of the SBC codec .
Latency refers to a short period of delay (usually measured in milliseconds) between when an audio signal enters a system, and when it emerges.Potential contributors to latency in an audio system include analog-to-digital conversion, buffering, digital signal processing, transmission time, digital-to-analog conversion, and the speed of sound in the transmission medium.
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.
Mobile phones, Bluetooth headphones, Home receivers Android 10: Bluetooth audio Yes No Yes Yes No L2HC Huawei: 2020 3.0 (2023-09-19) Non-free Huawei products, EMUI, HarmonyOS: Android 10, OpenHarmony, Oniro OS Bluetooth audio NearLink audio Yes Yes Yes Yes Yes Lyra: Google: 2021-04-06 1.32 / V3 (2022-12-21) Free Google Duo: Lyra: Speech, VoIP ...
This is a listing of open-source codecs—that is, open-source software implementations of audio or video coding formats, audio codecs and video codecs respectively. Many of the codecs listed implement media formats that are restricted by patents and are hence not open formats.
For example, Bluetooth MAP is used by HP Send and receive text (SMS) messages from a Palm/HP smartphone to an HP TouchPad tablet. [23] Bluetooth MAP is used by Ford in select SYNC Generation 1-equipped 2011 and 2012 vehicles [24] and also by BMW with many of their iDrive systems. The Lexus LX and GS 2013 models both also support MAP as does the ...