| 摘要 |
PROBLEM TO BE SOLVED: To easily and exactly set delay time by a user by performing the key input of each distance data between each speaker and a listening position and automatically calculating delay time. SOLUTION: The distance between a listening position P and each speaker 41 to 46 is measured, this distance value is inputted by the key part 11 of a remote control transmitter 2 and the signal including the distance value information corresponding to each speaker is generated from an infrared ray signal transmission part 22. A surround amplifier 1 receives this infrared ray signal by a reception part 14 and delivers the distance value information to a CPU 13. The CPU 13 performs the calculation of delay time, automatically calculates the optimum delay time for each speaker and transmits a setting signal to a delay circuit 12. The circuit 12 imparts proper delay time to the signal transmitted from a signal processing circuit 11 to each speaker based on the setting signal. |
