Microsoft has announced a significant upgrade to the audio experience on Windows 11. The introduction of the new LE Audio feature aims to address the previously common issue of muffled audio quality on Bluetooth headsets during game chats and voice calls. Built on the Bluetooth Low Energy (LE) radio specification, LE Audio employs a new compression algorithm that delivers higher quality audio.
According to Microsoft, this enhancement will “drastically” improve the audio experience on Windows 11, whether users are engaged in gaming or participating in calls. “When using an LE Audio device with a Windows 11 PC that supports super wideband stereo, the switch into game chat no longer causes an abrupt drop in audio quality,” said a principal program manager lead at Microsoft. Game audio will now remain in stereo and stream at super wideband quality, unlike the limited experience provided by Bluetooth Classic.
Microsoft boosts Bluetooth audio on Windows
LE Audio operates at a 32kHz sample rate for voice applications such as Microsoft Teams or Discord, replacing the older Advanced Audio Distribution Profile (A2DP) and Hands-Free Profile (HFP) of Bluetooth Classic, which used an 8kHz sample rate and resulted in muffled audio. Most modern Bluetooth headsets now support improved audio compression and sample rates, providing “wideband” or “super wideband” voice quality.
This upgrade will also enhance call quality in apps like Microsoft Teams. While Teams employs Spatial Audio for wired headsets, it previously depended on stereo audio and did not support Bluetooth headsets. The introduction of super wideband stereo support over Bluetooth LE Audio now allows Spatial Audio in Teams, which can be enabled in the audio settings within the Teams client on Windows.
To benefit from these improvements, users will need a Bluetooth headset that supports Bluetooth LE Audio, as well as a Windows 11 PC with the latest drivers and the Windows 11 24H2 update. Existing PCs are expected to receive the necessary driver updates later this year, and Microsoft anticipates that most new mobile PCs launching from late 2025 will support this feature from the factory.
