| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a surround audio system for a vehicle with a plurality of operating modes. <P>SOLUTION: The audio system includes a plurality of input channels, including surround channels and further includes a plurality of operating modes. A first operating mode is characterized by substantially equal perceived loudnesses at each of seating locations, an equalization pattern developed, by weighting frequency responses at each of the seating locations substantially equally, and a balance pattern developed by weighting sound pressure level measurements at each of the seating locations substantially equally. A second operating mode is characterized by greater perceived loudnesses at one of the seating locations than at the other seating locations, an equalization pattern developed by weighting the frequency responses at one of the seating locations more heavily than the frequency responses at the other seating locations, and a balance pattern, developed by weighting sound pressure level measurements at the one seating location more heavily than the weightings as the other seating locations. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
