| 摘要 |
PURPOSE: To enhance the presence in a headphone reproduction signal from which the presence is hardly obtained by exerting special acoustic effect by intermittent drive of a record disk matching the motion of listeners as conducted in a disco or the like. CONSTITUTION: The device is made up of variable coefficient multipliers 2L, 2R receiving respectively two systems of audio signals received by a signal source 1 and attenuating signal level at a proper ratio, an amplifier 3 amplifying outputs of the multipliers 2L, 2R at the same amplification factor, a headphone device 4 mounted on the head of a listener and driven by a reproduced audio signal from the amplifier 3, a detection means 5 provided to the headphone device 4 to detect a turn speed of the head of the listener, and a controller 6 adjusting the coefficient of the multipliers 2L, 2R based on a detection signal from the detection means 5. |
