The LC3plus audio codec is a highly optimized and highly efficient audio codec introduced for Bluetooth LE Audio, DECT and VoIP that dramatically improves streaming audio quality, reduces power, improves bandwidth and delivers ultra-low latency down to 5ms. The LC3plus audio codec has also received the Hi-Res Audio Wireless certification logo issued by the Japan Audio Society (JAS) for its ability to reproduce 40KHz frequencies when running at 96KHz with 24bit samples.
Our LC3plus and LC3 audio codecs are fixed point production proven implementations supporting all mandatory and optional features
LC3 Codec Development Status
The LC3 Codec Design is ready to license and available for the following CPUs/DSPs
• ARM® M4
• RISC-V
• HiFi® 3/5
• Qualcomm® Kalimba™ DSP
• Proprietary DSPs*
LC3plus Audio Codec IP for Bluetooth LE Audio
Overview
Key Features
- All Sampling Frequencies (8kHz, 16 kHz, 32 kHz, 44.1 kHz, and 48 kHz, For high-resolution Mode LC3 Plus also supports 96 kHz)
- Supports 16, 24, and 32 bits per audio sample
- Supports 2.5ms, 5 ms and 10ms frame interval
- Supports 20 to 400 bytes per frame and channel for 10 ms
- Supports 20 to 200 bytes per frame and channel for 5 ms
- Supports 20 to 100 bytes per frame and channel for 2.5 ms
- LC3plus decoder accepts up to 400 bytes per frame independent of frame duration
- Packet Loss Concealment as defined in LC3 Plus specification
- Error correction modes are available
- No restrictions with number of supported channels.
Technical Specifications
Maturity
In Production
Related IPs
- LC3 Codec IP for Bluetooth LE Audio
- LC3 / LC3plus Bluetooth LE Audio Codecs for Arm Cortex M55
- LC3 / LC3plus Bluetooth LE Audio Codecs for Arm Cortex M4 & M33
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