Open chrome://flags/#enable-tab-audio-muting and enable “Enable tab audio muting UI control” option, then restart your browser.

Now we can have mute option on each tab:

After that, there will be a muted icon on the tab, and if you want to unmute it, there is also an unmute option in the menu of the tab.

Very useful when surfing to some noisy websites!

BTW , the demo screenshots came from the trailer of Transcendence, a very very awesome movie!
[youtube=https://www.youtube.com/watch?v=VCTen3-B8GU]