| 摘要 |
PROBLEM TO BE SOLVED: To readily obtain high-quality reverberated sounds in response to a surround system. SOLUTION: A sound source 102 is installed at a predetermined position of a stage part 101A. Impulse response measuring microphones 103FL, 103FR, 103RL, 103RR are each installed at predetermined positions in response to a surrounding system in a seat part 101B. Measuring TSP signals reproduced by the sound source 102 are each collected by four mikes, and each of four channels is converted into digital signals by an A/D converter 93', and is supplied to an impulse response collector 97'. In the device 97', measured data of the four channel are each divided by inverse characteristics of the TSP signals, thereby obtaining impulse response data at each of the four channels. The impulse response data at each of the four channels are recorded in, e.g. CD-ROMs. Audio signals are each folded in by the impulse response data of the four channels, thereby obtaining reverberated sounds in response to the surround system. |
