| 摘要 |
PURPOSE:To provide the setting method for a speaker delay time by which an arrival time detection error of an impulse reply signal from each speaker is suppressed small and a delay time of delay devices is more accurately set in comparison with a conventional delay time setting method. CONSTITUTION:In the case of setting a speaker delay time, a detection control means 34 switches a changeover means 23 to the position of terminals 23b-23c and an impulse signal generated from a sound source 11 is inputted as it is to a woofer 21. Then the arrival time of the reply signal with respect to the impulse signal outputted from the woofer 21 is detected and the delay time is set respectively by delay devices 13-15 is set based on the detection result. |
