You may have noticed the four volume sliders in your Samsung/Android phone settings.
The first volume control is the “Ringing” volume control. This controls the sound of the phone when someone calls you.
The second volume control is the “Media” volume control. This controls the volume when you play media on your phone such as music or watching an online video.
The third volume control is the “System” volume control. This controls the volume of any sounds made by the system itself. This can be the sound it makes when you plug the charger in; or when you take a photo or notifications from the apps that you have installed on your phone.
Lastly there is the “Notifications” volume slider. This slider controls the volume of the messages that the apps (applications) on your phone send to you. These notifications could be from say Facebook telling you that someone has liked your post, to a new article from a newspaper that you are subscribed to.