LC3plus is an extended version of the Bluetooth LE Audio codec LC3, standardized by ETSI (TS 103 634) for professional and wired applications that go beyond the LE Audio baseline. It adds higher sample rates up to 96 kHz, very low frame durations for low-latency use, and packet-loss-concealment and error-protection tools aimed at robust links. Where LC3 targets earbuds and hearing aids on Bluetooth, LC3plus aims at professional wireless audio, headsets, and industrial voice systems where latency and resilience are critical. The two share a common heritage and high efficiency but serve different ends of the market — consumer wireless versus professional and mission-critical audio.
The book · Volume 4 of 7
Audio for Video: A Complete Guide to Sound in Video Products: From PCM and Codecs to Loudness, Accessibility, and Real-Time Voice Processing
LC3plus takes the Bluetooth codec into professional and wired gear, with higher sample rates and very short frames for low latency. Volume 4 covers LC3plus with the wider codec family: sample rates and bit depth, frame duration and delay, packet loss tools, and when Opus or AAC is the better choice. Written by Nikolay Sapunov, CEO at Fora Soft.
Weighing LC3plus against Opus for a low-latency audio link?
Describe your latency and quality targets and we will recommend a codec, frame size and bitrate, with LC3plus measured against the alternatives. 250+ video products shipped since 2005.
