Solution:
Root Cause: Browser WebRTC and Microphone Permission Hooks
Web browsers (Google Chrome, Microsoft Edge, Firefox) running web apps like Google Meet, Webex, or Discord Web frequently request microphone permissions. When a browser tab maintains an active microphone permission hook, Windows treats the browser as an active telephony session, locking Bluetooth audio into the Hands-Free profile.
Diagnostic Verification:
Close all browser windows and verify whether AirPods audio instantly returns to high-quality stereo. If closing the browser resolves the muffled sound, browser permission hooks are the root cause.Step-by-Step Fix:
1Open Browser Site Settings:
In Chrome or Edge, navigate to chrome://settings/content/microphone or edge://settings/content/microphone.2Restrict Automatic Access:
Review sites allowed to use your microphone and remove untrusted or idle web applications.3Force Audio Output in Browser Extensions:
Install a reputable audio routing extension or manage default media output devices directly within your operating system sound settings.4Restart Browser:
Fully close all browser instances and reopen them.Prevention & Long-Term Monitoring:
Regularly audit browser site permissions and revoke persistent microphone access for websites that do not require constant voice communication.