AUDIO OUTPUT APPARATUS, SYNCHRONIZATION ADJUSTMENT SYSTEM, AND SYNCHRONIZATION ADJUSTMENT METHOD

摘要

PROBLEM TO BE SOLVED: To provide an audio output apparatus capable of simply adjusting the synchronization between a video image of a display apparatus such as a plasma display device and an output audio of the audio output apparatus such as an audio amplifier.;SOLUTION: The audio output apparatus includes: a generating means (test video image generating circuit 4f) for generating a video signal with a luminance change; a supply means (analog video image output terminal 4p) for supplying the video signal to the display apparatus; a light receiving means (visual light receiving section 4m) for receiving the light from a display section of the display apparatus; a calculation means (delay amount detection circuit 4j) for calculating a time after the display apparatus receives the video signal until the display apparatus displays a video image; an input means (analog audio input terminal 4b) for receiving an audio signal; a delay means (digital delay circuit 4i) for delaying the audio signal by a time corresponding to the time calculated by the calculation means; and an output means (analog audio output terminal 4q) for outputting the delayed audio signal to an audio reproducing apparatus.;COPYRIGHT: (C)2006,JPO&NCIPI