LC3 (codec)
| Type of format | Audio |
|---|---|
| Extended to | LC3plus |
| Standard | Bluetooth 5.2 LE |
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.[2]
It provides higher audio quality and better PLC than SBC, G.722 and Opus according to subjective testing by the Bluetooth Special Interest Group and ETSI.[3][4] [5] Notably, the test only included speech audio, but the comparison was made to Opus 1.1.4 complex level 0 at 32kbps using Opus CELT (general audio) not SILK (speech). On top of comparing speech to general audio codec and using the lowest complex level instead of the default, it also did not use the newer Opus 1.2 released in 2017 where significant improvements were made to low bitrate streams.
Implementations
EtherMind LC3
EtherMind from MINDTREE Ltd is a BT-SIG qualified Bluetooth Stack and Profile IP offering.[6]
Mindtree's EtherMind LC3 codec has been qualified by Bluetooth SIG on 2021-03-21 with QDID 161136.[7]
See also
References
- ^ "LE Audio". Bluetooth Technology Website. Retrieved 2020-01-08.
- ^ "LC3 / LC3plus". Fraunhofer IIS. Retrieved 2020-01-10.
- ^ Frumusanu, Andrei. "CES 2020: Bluetooth SIG Announces LE Audio Standard: New Baseline For Next Decade". www.anandtech.com. Retrieved 2020-01-08.
- ^ "New Bluetooth codec improves sound quality, benefits the hearing impaired". Android Authority. 2020-01-07. Retrieved 2020-01-08.
- ^ "Digital Enhanced Cordless Telecommunications (DECT); Study of Super Wideband Codec in DECT for narrowband, wideband and super-wideband audio communication including options of low delay audio connections (≤ 10 ms framing)" (PDF). ETSI. September 2018.
{{cite web}}: CS1 maint: url-status (link) - ^ "Mindtree's Short Range Wireless IP Offerings". Mindtree.com. 2016-06-23. Retrieved 2016-06-23.
- ^ "QDID 161136| The Official Bluetooth SIG Member Website". Bluetooth SIG. 2021-03-21. Retrieved 2021-03-21.
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