How to allow (unmute) or block (mute) sites to Play Sound in Google Chrome from Site Settings:
1 - While in Google Chrome, open the tab you want to allow or block.
2 - Click/tap on the View site information button just to the left of the site's URL in the address bar, and click/tap on Site settings.
3 - Click/tap on Allow (unmute), Block (mute), or (default) action from the Sound drop menu for what you want for this site.
4 - When finished, you can close the “Settings” tab.