Get the Really Mute Inactive Tabs LT extension The extension is called Really Mute Inactive Tabs LT.
A Chrome extension instead handles this automatically muting all background tabs and keeping the active tab's audio unmuted. While you can mute only the tab playing the audio, you still have to locate it and then mute it. While you can either completely mute your system volume, it is not convenient to do so and unmute it every time you need to listen to something. When you are browsing the web, you may be opening multiple tabs and it is very annoying when a tab which is in the background starts playing audio suddenly without even it being focused.
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