| 摘要 |
PURPOSE:To prevent the destruction of balance adjustment by controlling the level of a voice signal inputted to each speaker system according to an angle signal. CONSTITUTION:When angle signals outputted from angle sensors 10, 11 are fetched by a control part 12, a driving signal is outputted to turntable driving 13, 14 according to their angle signal, fetched by rotary encoders 15, 16 and the rotational position of the turntable is adjusted at gain adjustment circuits 8, 9 by feedback control. Consequently, when a remote control signal light is emitted, the respective parts of the speaker system are faced to the adjusting positions and the output balance is adjusted. |
