How can I turn off the sound for the facebook notifications on my PC?

[Sreedev Sharma]

Hi,
To turn off notification sounds, go to your notifications settings and uncheck the box next to Play a sound when each new notification is received:

1.Click in the upper-right corner of any page on Facebook and select Account Settings
2.Click Notifications in the left column
3.Find the How you get notifications section
4.Click View next to On Facebook
5.Uncheck the box next to Play a sound when each new notification is received
6.Click Save Changes

The article has explained it using screenshot..:http://www.sociobits.org/2013/04/how-to-turn-off-facebook-sound-notifications.html

Hope this helps!