Have you ever had a bunch of tabs open in Edge, switching back and forth between them, and then all of the sudden an advertisement starts. You have to find the right tab and then find the mute button to stop it?
There’s faster way to “shut down that sound”.
New in Windows 10 April Updates, you can mute Edge tabs.
You now see the audio icon on the tabs.
Click on the audio icon to mute it. Click on it again to unmute it.
Reference: “Windows 10 Tip: Yikes, stop that sound! Mute-a-tab in Microsoft Edge” - https://blogs.windows.com/windowsexperience/2018/07/02/windows-10-tip-yikes-stop-that-sound-mute-a-tab-in-microsoft-edge/#emTzCsElZLcGGPQS.97