Patent ID: 8231223

Claim:
A projector comprising: a light source; a light modulation device which forms an image by modulating light emitted from the light source according to inputted image information; a projection optical system which projects the image formed by the light modulation device; a projection position controlling unit which controls the projection position of the image by shifting the projection optical system in the left-right direction with respect to the projection direction; a pair of left and right speakers which output sounds corresponding to audio information inputted with the image information; and a sound volume adjusting unit which separately adjusts sound volume levels of the sounds outputted from the pair of the speakers based on the control condition of the projection position provided by the projection position controlling unit, wherein the sound volume adjusting unit sets the sound volume level for one of the right or left speaker included in the pair of the speakers at a level higher than that for the another of the right or left speaker when the projection position controlling unit shifts the projection position toward the another direction from the front center.