| 摘要 |
PURPOSE:To change naturally location of sound image with simple configuration by providing a delay circuit retarding 1st or 2nd acoustic signal for a prescribed time, inputting either the 1st or the 2nd acoustic signal to the delay circuit, controlling the delay of the delay circuit so as to control the location of the sound image. CONSTITUTION:When a sound image is located to an L channel, an acoustic signal S1 is inputted from an acoustic signal input terminal 1 and a control signal Sc in response to the sound image location to the L channel from a control signal input terminal 12 is inputted. Thus, the acoustic signal S'1 to the L channel is outputted and given to a speaker 6 without being retarded at a delay circuit 10. On the other hand, the R channel acoustic signal S'1 is delayed by a prescribed time at the delay circuit 11 and outputted as a signal SR and inputted to a speaker 17. Thus, the sound image 13 is located at the L channel by the Haworth effect. Then when the sound image is located at the R channel, the acoustic signal S'1 at the L channel is delayed for a prescribed time at the delay circuit 10 and outputted as the signal S1 and inputted to the speaker 6. |
