| 摘要 |
PURPOSE:To always obtain a comfortable musical enviraonment, by automatically forming the optimum acoustic field at the location of the listener holding a transmitter. CONSTITUTION:Signals outputted from a transmitter 1 are received by a receiving section 1. The signals received by the receiving section 2 are amplified by an amplifier circuit and outputted to a location searching section 21. At the location searching section 21 the location of the transmitter 1 is searched and information regarding the location in plane coordinates around the location of the receiving section 2 is obtained. Then the information regarding the locating of the transmitter 1 is outputted to a sound volume balance adjusting section 22 and a sound volume balance suitable for the location of the transmitter 1 is determined. In addition, the amplification factor of each amplifier section 23 and 24 of right- and left-loudspeakers 4 and 5 is determined and signals are outputted to adjust the amplification factors of the amplifier sections 23 and 24. Since the information regarding the locations of the loudspeakers 4 and 5 is previously inputted in the memory of the adjusting section 22 with the receiving section 2 being used as a reference, the sound volumes to be outputted from the loudspeakers 4 and 5 can accurately be determined when the location of a listener to the locations of the loudspeakers 4 and 5 is confirmed on plane coordinates. |
