A display apparatus and a method of controlling a display apparatus are disclosed. The display apparatus includes: a display configured to display an image based on a video signal; a sound output section configured to output a first sound based on a sound signal; a first sound receiver configured to receive a first mixed sound including the first sound and a second sound of a user; a second sound receiver which is spaced apart at a distance from the first sound receiver and is configured to receive a second mixed sound comprising the first sound and the second sound; and a controller configured to perform control in accordance with the second sound of the user, the second sound being acquired based on the first mixed sound and the second mixed sound.