A display apparatus comprising: a display; a loudspeaker; a user input unit; a video processor configured to: process a video signal to be displayed as an image on the display, and change a viewpoint of the image displayed on the display in response to a user input made through the user input unit; and an audio processor configured to: process an audio signal to be output as a sound from the loudspeaker, compare characteristics of channels of the audio signal to determine whether the audio signal is generated by live recording, determine acoustic features of the audio signal, determine, in response to the change in viewpoint, a change in position of at least one sound source in the image; adjust the output of the sound from the loudspeaker by adjusting one or more of the determined acoustic features, in response to the user input, when the audio signal is determined to be generated by live recording, so that the output of the sound is adjusted in accordance with the change in the viewpoint and the determined change in position of the at least one sound source, and maintain an original state of the output of the sound from the loudspeaker, in response to the user input, when the audio signal is determined to be generated by post-process recording. a display; a loudspeaker; a user input unit; a video processor configured to: process a video signal to be displayed as an image on the display, and change a viewpoint of the image displayed on the display in response to a user input made through the user input unit; and process a video signal to be displayed as an image on the display, and change a viewpoint of the image displayed on the display in response to a user input made through the user input unit; and an audio processor configured to: process an audio signal to be output as a sound from the loudspeaker, compare characteristics of channels of the audio signal to determine whether the audio signal is generated by live recording, determine acoustic features of the audio signal, determine, in response to the change in viewpoint, a change in position of at least one sound source in the image; adjust the output of the sound from the loudspeaker by adjusting one or more of the determined acoustic features, in response to the user input, when the audio signal is determined to be generated by live recording, so that the output of the sound is adjusted in accordance with the change in the viewpoint and the determined change in position of the at least one sound source, and maintain an original state of the output of the sound from the loudspeaker, in response to the user input, when the audio signal is determined to be generated by post-process recording. process an audio signal to be output as a sound from the loudspeaker, compare characteristics of channels of the audio signal to determine whether the audio signal is generated by live recording, determine acoustic features of the audio signal, determine, in response to the change in viewpoint, a change in position of at least one sound source in the image; adjust the output of the sound from the loudspeaker by adjusting one or more of the determined acoustic features, in response to the user input, when the audio signal is determined to be generated by live recording, so that the output of the sound is adjusted in accordance with the change in the viewpoint and the determined change in position of the at least one sound source, and maintain an original state of the output of the sound from the loudspeaker, in response to the user input, when the audio signal is determined to be generated by post-process recording.