An information processing device for use with MPEG-DASH content, the device comprising: a screen split processor configured to split image data of MPEG-DASH video content into tile units and to generate tile position information; an image encoding processor configured to encode the image data for each tile to generate a video stream; an image file generator configured to process the video stream of each tile into a file format in units of segments, and generate a resulting image file of each tile; an image information generator configured to supply an information generator with the tile position information and with image frame size information, the image frame size information indicating an image frame size of image data; an audio file generator configured to generate an audio file including audio data of a plurality of the objects and audio position information indicating a position of each of the objects in the audio file of the audio data; a metafile generator configured to generate a metadata file of the audio data including the audio position information; the information generator configured to generate, as an MPD file, information used to specify the image frame size information, tile size information, and the metadata file; and a transmitter configured to transmit the MPD file generated by the information generator and the metadata file generated by the metafile generator, wherein the image frame size information is configured as information indicating an angle of view in horizontal and vertical directions of the image data and a distance between a base point of the angle of view and an image plane, wherein the audio position information is configured as information indicating an angle in horizontal and vertical directions of a line connecting a position in which the audio data is acquired and a base point and a distance between the position in which the audio data is acquired and the base point, wherein the transmitter is configured to transmit the audio data corresponding to a display area that is an area to be displayed in an image corresponding to the image data, the audio data being requested based on the image frame size information and the audio position information, wherein the audio data is audio data in units of objects, and wherein the transmitter is configured to transmit audio data of the object corresponding to the display area. a screen split processor configured to split image data of MPEG-DASH video content into tile units and to generate tile position information; an image encoding processor configured to encode the image data for each tile to generate a video stream; an image file generator configured to process the video stream of each tile into a file format in units of segments, and generate a resulting image file of each tile; an image information generator configured to supply an information generator with the tile position information and with image frame size information, the image frame size information indicating an image frame size of image data; an audio file generator configured to generate an audio file including audio data of a plurality of the objects and audio position information indicating a position of each of the objects in the audio file of the audio data; a metafile generator configured to generate a metadata file of the audio data including the audio position information; the information generator configured to generate, as an MPD file, information used to specify the image frame size information, tile size information, and the metadata file; and a transmitter configured to transmit the MPD file generated by the information generator and the metadata file generated by the metafile generator, wherein the image frame size information is configured as information indicating an angle of view in horizontal and vertical directions of the image data and a distance between a base point of the angle of view and an image plane, wherein the audio position information is configured as information indicating an angle in horizontal and vertical directions of a line connecting a position in which the audio data is acquired and a base point and a distance between the position in which the audio data is acquired and the base point, wherein the transmitter is configured to transmit the audio data corresponding to a display area that is an area to be displayed in an image corresponding to the image data, the audio data being requested based on the image frame size information and the audio position information, wherein the audio data is audio data in units of objects, and wherein the transmitter is configured to transmit audio data of the object corresponding to the display area.