Researchers revealed the video at the acoustical society of america meeting .
研究人员在美国声学学会的一次会议上展示了这段视频。
Vitruvius also added one of the great historical mysteries to the acoustical literature .
维特鲁威还为声学增加了一个重大的历史之谜。
The ancient greeks were aware of other acoustical principles , at least empirically .
古希腊人也知道一些其他的声学原理，至少在实践上。
They 'll present the findings at a meeting of the acoustical society of america .
他们将在美国声学学会会议上展示这次发现。
Gregorian chant grew out of the acoustical characteristics of the gothic cathedrals , and subsequently baroque music was written to accommodate the churches of the time .
