Windows 11 includes support for Bluetooth Low Energy Audio, which uses the LC3 codec for improved audio quality and lower power consumption. However, not all Bluetooth adapters and headphones support this new standard. You need to verify that your system has the correct hardware and driver support before you can use LC3 audio. This article … Read more
When you join a Microsoft Teams call on Windows 11, you might notice that other apps like Spotify, YouTube, or a game suddenly go silent. This happens because Windows 11 automatically enters Communication Mode as soon as Teams detects an active call. Communication Mode is a built-in audio behavior that reduces or mutes all other … Read more
Your USB-C audio dongle connects to your Windows 11 laptop or tablet, but no sound comes out. The device does not appear in the Sound settings or Device Manager. This means the dongle is not enumerating — Windows is not recognizing it as a valid audio device. The problem is often caused by power delivery … Read more
If your Bluetooth headphones or speaker suddenly stop working in Windows 11 and the audio service appears to be running but no sound comes through, a Bluetooth stack crash is often the cause. The Bluetooth stack is a set of drivers and services that manage wireless audio connections. When it crashes, the Windows Audio service … Read more
After resuming from hibernate, your Windows 11 computer may lose all sound output. The system tray speaker icon shows a red X, and apps report no audio device. This problem occurs because the AudioEndpointBuilder service, which manages audio endpoints like speakers and headphones, crashes or fails to restart during the wake process. The crash is … Read more
When you connect a headset to your Windows 11 PC, games sometimes continue sending sound to external speakers instead of the headset. This happens because Windows 11 can assign the wrong audio device as the default for specific applications. The issue is common with USB headsets, Bluetooth headsets, and analog headsets connected through a combo … Read more
You plug headphones into your PC front-panel jack and hear nothing. Windows 11 shows no pop-up asking what device you connected. The audio driver has disabled jack detection for the front panel, a common issue after driver updates or BIOS changes. Jack detection is the feature that tells the operating system when a plug is … Read more
When you change your display settings on Windows 11, such as switching to a higher resolution or connecting a new monitor, the HDMI audio device may disappear from the Sound settings. This happens because the display driver forces a renegotiation of the audio endpoint, and the HDMI audio driver fails to reinitialize correctly. The problem … Read more
Stereo Mix is a Windows audio recording feature that captures all audio output from your system — not just microphone input. If you need to record what you hear from your speakers, such as streaming audio, game sound, or a video call, Stereo Mix is the tool for the job. However, modern Realtek audio drivers … Read more
Discord voice chat suddenly switches your audio output device while you are in the middle of a call. This can happen when Windows 11 changes the default playback device, or when Discord detects a new audio endpoint and automatically reroutes audio. The root cause is typically a combination of Windows audio device priority settings, Discord’s … Read more