On BlackBerry 10, notification profiles are still around, though the Loud and Medium profiles are now gone. It also isn't as simple as selecting a speaker icon on the homescreen to change the profiles either. In order to change them you have to dive further into the settings -- although going between Normal and Silent is quick and easy. Contiinue reading see how to change Notification Profiles on BlackBerry 10.
To change notification profiles:
To toggle between Normal and last used Profile:
By default, this option toggles between Normal and Silent mode.
That's it. That's how to change the notification profiles on BlackBerry 10. If you have keyboard sounds on for the Normal Profile, change to either Silent of Vibrate will turn off the keyboard sounds too. Note that the volume keys on the side control media and game sounds, independent of notification sounds.