| 摘要 |
PURPOSE:To permit all the passengers to put into a regenerated sound field permitting the superior listening for the output sound of an audio apparatus by correcting the audio signals of the audio apparatus according to the level setting signal corresponding to the result of the detection for the fastening of seat belts. CONSTITUTION:Fastening detecting switches 13-16 which are turned-OFF on fastening are installed onto the connector parts 9a-12a for fastening seat belts 9-12. Front speakers 18 and 19 are installed at the right and left of a front tray 17, and rear speakers 21 and 22 are installed at the right and left of a rear tray 20. While, in a sound-field correcting apparatus, a level setting circuit 27 is connected to the other edges of the fastening switches 13-16. The level setting circuit 27 has four output terminals, and outputs, as digital signals, the value predetermined for each output terminal according to each input level supplied from the fastening detecting switches 13-16, and the audio signal of an audio apparatus is corrected. |
