自二戰以來，階梯式廳堂(Vineyard)形式，由於電腦工具的發達與營造技術的進步，在音樂廳堂設計上被大量使用，其原因為造型現代且具空間張力、觀眾席容量大並且在席位安排上相較於傳統鞋盒型音樂廳具有較大的彈性。也因階梯式廳堂在室容積與舞台面積較大，在強度因子(G)、早期舞台支持度(ST early或稱ST1)以及側向能量(LF)的表現上較傳統鞋盒式廳堂(Shoebox)弱。
為研究如何讓階梯式廳堂具備有傳統鞋盒式廳堂之優點，本研究則選擇在傳統鞋盒型廳堂中較具特色之阿姆斯特丹音樂廳(Amsterdam Concertgebouw)為主體，使用CATT –Acoustic V8.0以及Odeon V9.2進行電腦模擬與結果分析
從電腦模擬數據與Beranek實際測量之數據進行比對，並針對各種較弱之項目進行改善。模擬階段共推演17個對照組，針對不同參數值來進行結果分析，可以得知藉由調整廳堂之寬長比可以改善LF與ST1較弱的狀況；而在席位區劃方面，在區塊化之後的席位所形成之錯層則對於廳堂整體音量的平衡有所幫助，但由於在室容積變大的狀況下，在後段席位區域會造成音量降低之狀況；從天花板形式的改變，對於提升後段席位的音量方面以及LF上都有改善，尤其以Tent ceiling更為顯著；針對ST1的部分，則以舞台反射板的有無進行模擬，其結果發現在階梯式廳堂的形式中距離舞台10m高之舞台反射板的效果並無特別顯著之增益，並且影響觀眾席對舞台之視線。
關鍵字：階梯式廳堂、環繞式舞台、電腦模擬

Since World War II, the design of vineyard type concert halls are popularly used due to the development of computer tools and great progress of construction technology. These kinds of concert halls are more modern and space can be arranged more flexible than the traditional shoebox ones. Because the room volume and stage area of vineyard type concert hall is relatively large, this decreases the G factor, ST early (ST1) and LF values
In order to investigate how to add the advantage of traditional shoebox concert hall to the vineyard type concert hall, this study uses CATT-Acoustic V8.0 and Odeon software to simulate the Amsterdam Concertgebouw and analyze the obtained results.
Comparing the results of computer simulation with Beranek’s experimental data, this study aims at improving the weaker points and develops seventeen models of control groups. According to different sets of parameters, this study can improve the LF and ST early values in the hall by adjusting the ratio of width to length. In the respect of dividing zones of seats, it produces the staggered arrangement which is helpful for the balance of rear seats. If changing the ceiling type, it can assist the sound volume for the rear seats and LF values using Tent ceiling. In addition, this study also focuses on whether the reflection boards were hung on 10 meters high above the stage or not to test the ST early values. The result shows that there is no significant effect from the reflection surfaces and they affect the audiences’ line of sight instead in the vineyard type concert halls

Keyword: Vineyard、Surrounding Stage、 Acoustic Simulation

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