| 摘要 |
PURPOSE:To allow all listeners to listen to left and right sound levels equally by providing a couple of amplifier circuits and 3 speakers or over and supplying signals to the speakers so that the left or right stereo signal is reproduced alternately in the order of the arrangement of the speakers. CONSTITUTION:When a switch 5 is selected to the position (a), for example, a right stereo signal fed to an input terminal 4R is amplified to a prescribed level by amplifiers 6a, 6c and reproduced as sound by speakers 3a, 3c and 3, 3f. On the other hand, a left stereo signal fed to an input terminal 4L is amplified to a prescribed level by amplifiers 6b, 6d and reproduced as sound by speakers 3b, 3e. Thus, the left and right stereo signals are correctly reproduced from the left and right side respectively to listeners 2a, 2c. However, the left and right stereo signals are reproduced in the opposite order to listeners 2b, 2d, since the left right levels are listened to equally, a stereophonic sense is obtained. |
