An information processing apparatus comprising: a display unit; a sound output unit that is configured to use one or more vibrators to vibrate the display unit and thereby output sound; and a control section that is configured to: detect, as a sound source, graphics of a sound agent executed on the information processing apparatus, wherein the sound agent is an animated character; acquire the display position of the sound agent from a graphics processing unit that generates the video of the sound agent; and localize a sound image of sound of the sound source at the position where the graphics of the sound agent are displayed on the screen and that uses the sound output unit to control output of sound such that a sound image of sound in synchronization with the graphics of the sound agent is localized at the position where the sound source appears on the screen displaying the graphics of the sound agent; means (207; 208) for detecting a position or a movement of a user; and a detection section that is configured to detect a user interacting with the sound agent, wherein the control section is further configured to control a display position of the graphics of the sound agent according to the detected position or movement of the interacting user. a display unit; a sound output unit that is configured to use one or more vibrators to vibrate the display unit and thereby output sound; and a control section that is configured to: detect, as a sound source, graphics of a sound agent executed on the information processing apparatus, wherein the sound agent is an animated character; acquire the display position of the sound agent from a graphics processing unit that generates the video of the sound agent; and localize a sound image of sound of the sound source at the position where the graphics of the sound agent are displayed on the screen and that uses the sound output unit to control output of sound such that a sound image of sound in synchronization with the graphics of the sound agent is localized at the position where the sound source appears on the screen displaying the graphics of the sound agent; means (207; 208) for detecting a position or a movement of a user; and a detection section that is configured to detect a user interacting with the sound agent, wherein the control section is further configured to control a display position of the graphics of the sound agent according to the detected position or movement of the interacting user. detect, as a sound source, graphics of a sound agent executed on the information processing apparatus, wherein the sound agent is an animated character; acquire the display position of the sound agent from a graphics processing unit that generates the video of the sound agent; and localize a sound image of sound of the sound source at the position where the graphics of the sound agent are displayed on the screen and that uses the sound output unit to control output of sound such that a sound image of sound in synchronization with the graphics of the sound agent is localized at the position where the sound source appears on the screen displaying the graphics of the sound agent; means (207; 208) for detecting a position or a movement of a user; and a detection section that is configured to detect a user interacting with the sound agent, wherein means (207; 208) for detecting a position or a movement of a user; and a detection section that is configured to detect a user interacting with the sound agent, wherein the control section is further configured to control a display position of the graphics of the sound agent according to the detected position or movement of the interacting user.