| 摘要 |
PURPOSE: To control each function of KARAOKE according to a position where a KARAOKE singer sings. CONSTITUTION: The coordinate (x) of the position where the KARAOKE singer S stands is detected by singer sensors 11R, 11L. The singer sensors 11 are infrared sensors, which detect the position of the singer by the strength of an infrared ray inputted to both sensors and emitted from the singer. The direction of spot light 14 is adjusted corresponding to the position, and the spot light 14 is set so as to always illuminate the singer even when the singer continues to move. Also, a duet singing signal and a harmony chorus signal outputted in synchronism with KARAOKE singing are positioned at the coordinate decided corresponding to the coordinate (x). The duet singing signal is positioned at a position as shown in D i.e., w-x. The harmony chorus signal C1 is positioned at w-(3/2)x, and the harmony chorus signal C2 at w-x/2. |
