SPECIFIC VIDEO/ACOUSTIC EFFECT DEVICE

PURPOSE: To attain various and interactive video/acoustic expression linked with the movement of a camera or the play of a subject by controlling the volume/quality of sound using the position of a sound source, visual point and a line of sight information and outputting a composite image between a computer graphic (CG) image and an actually photographed image. CONSTITUTION: A CG image generating part 13 generates a CG image by the use of information of a visual point and a line of sight corresponding to camera information acquired by a camera sensor part 12. A sound control part 15 controls the volume/quality of sound by the use of the information of the position of a sound source, a visual point and a line of sight. Then an image composition part 14 composes the CG image and a video actually photographed by a camera and outputs a composite image. Consequently a composite video between a CG image corresponding to the position and direction of the camera and an actually photographed image and interactive expression with the camera, a CG, an actually photographed picture, and sound integrated with each other provide various effects.