| 摘要 |
PURPOSE:To automatically adjust the sound volume balance of the left and the right loudspeakers being suitable for a viewer's position, in the viewer's position. CONSTITUTION:From the left and the right loudspeakers 2, 3, unit balance adjusting sounds of the same level are outputted alternately, and a microphone 14 provided in a remote controller 4, a level detector 15, a memory 16 for storing a level of one of the unit balance adjusting sounds, data stored in this memory, and the other unit balance adjusting sound are compared. This device is provided with a comparator circuit 17 for outputting a balance adjusting signal for showing from which loudspeaker a larger unit balance adjusting sound is outputted and its level difference, and the balance of both loudspeaker sounds is adjusted. |
