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1 天坛皇穹宇概况 天坛是世界上现存规模最大的祭天建筑群。她以精湛的建筑艺术,丰富的文化内涵成为东方古老文明的一个象征和人类的艺术瑰宝。天坛回音壁、三音石、圜丘台以及一音石、二音石等几处著名的声学现象更使天坛增添几分神秘,几分情趣。正是她的这些奇妙声学现象被列为我国山西“普救蟾声”、河南“蛤蟆塔”、以及四川“石蹬琴声”等四大回音建筑之首。我们自1993年开始,历时两年对天坛的上述声学现象进行了研究,并逐一揭开了这些声学现象形成的机理。1994年3月26日上午,作者在天坛皇穹宇内意外发现了一个奇妙的声学现象
1 The Temple of Heaven The Temple of Heaven The Temple of Heaven is the largest celestial building complex in the world. With exquisite architectural art and rich cultural connotations, she has become a symbol of the ancient civilization of the East and a human artistic treasure. The well-known acoustics of the Temple of Heaven’s whispering gallery, the triphonic stone, the Lugu Hill Terrace, and a sound stone and a two-tone stone have added a bit of mystery to the Temple of Heaven. It is precisely these wonderful acoustic phenomena she ranks among the top four echoing buildings in Shanxi Province, such as “The Sound of Saving All-round,” “Henan Tower,” and Sichuan “The Sound of Stone Bass.” Since 1993, we have studied the above-mentioned acoustic phenomena of the Temple of Heaven for two years, and have unveiled the mechanism of these acoustic phenomena one by one. On the morning of March 26, 1994, the author accidentally discovered a wonderful acoustic phenomenon in the Temple of Heaven