Windows 11 24H2 adds LE Audio with super wideband stereo for mic use

Microsoft is rolling out a significant upgrade to Bluetooth audio on Windows 11 that aims to eliminate the long-standing tradeoff between high-fidelity sound and microphone use. The company is introducing Bluetooth Low Energy LE Audio support with a new "super wideband stereo" profile in Windows 11 version 24H2, enabling stereo, higher-sample-rate audio while simultaneously using a headset microphone. The change targets gamers, remote workers and anyone who previously lost stereo quality or suffered muffled voice performance when taking calls with Bluetooth headsets.

For years Windows users have been constrained by two legacy Bluetooth Classic profiles. The Advanced Audio Distribution Profile, or A2DP, delivers high-quality, stereo audio but disables the headset microphone. The Hands-Free Profile, or HFP, enables two-way voice but reduces fidelity, often downmixing sound to mono and cutting sample rates to the wideband range around 16 kHz. Microsoft says this architecture dates back decades and has created a persistent compromise for people who want both clear voice and immersive audio.

LE Audio replaces the old profiles with a modern architecture that uses the LC3 codec and...