How can I fix my (auto-play) sound in Safari?

Due to an update in Safari, the automatic playback of sound sometimes does not work anymore. You can fix this problem by adjusting your settings:

1. Click on "Safari" > "Settings for This Website..." in your Safari browser. 
   
2. Next, click on "Auto-Play" and select "Allow All Auto-Play". 
     
   
   Now your sound should work perfectly again!