| 摘要 |
PURPOSE:To ensure the smooth shift of the sound image in the space, by giving the control to the varying mode of the gain in the two variable gain control circuits and the switching mode of the switching device. CONSTITUTION:The input signal supplied from input terminal 1 to be the subject of the reproduction is applied to two variable gain control circuits VGC1 and VGC2 through variable gain control circuit VGC3. And the outputs of circuits VGC1 and VGC2 are supplied to switching device SW to be then applied to speakers SP1- SPn connected to SW and distributed in the fixed space each. The control is given to the varying mode of the gains of VGC1 and VGC2 as well as to the switching mode of SW via control unit DC connected to operation part OP. Thus the shift velocity of the sound image is set by operating the input button at part OP. As a result, the smooth shifting is ensure for the sound image within the space. |
