Display apparatus and method of controlling the same

The disclosure is to provide a display apparatus capable of increasing user convenience by outputting a screen and a sound under predetermined conditions when outputting a split screen, and a method of controlling the display apparatus. The display apparatus of the disclosure includes a speaker; a display; and in response to input of an output command for outputting the plurality of contents to the plurality of regions of the display, a controller configured to output image signals of a plurality of contents to a plurality of regions, and to output sound signals of the plurality of contents to the speaker. Sizes of the plurality of regions and an output intensity of the sound signal corresponding to the plurality of contents are configured to be determined based on priority information predetermined based on the plurality of contents.