教堂空間因為其高容積和長條木質椅的使用，普遍存在室內空間清晰度不足以及因占席狀況差異造成之餘響時間變動，也常因特殊幾何形式形成各類型聲學缺陷。本研究因此以懷恩堂與中國佈道會為例，針對前述問題及其解決方法加以探討。
本研究以商用聲學性能模擬軟體，模擬現況以及對照解決方案之聲學性能。在既有的懷恩堂裡，先進行現場實測，做為電腦模擬設定的參考。在清晰度不足和集會人數變動性之外，懷恩堂因空間內平行的大面窗戶造成顫動回音，可透過裝設窗簾解決，再搭配座椅、牆體、天花等部位吸音處理，同步降低餘響時間數值和其變動性；中國佈道會其曲面造型產生聲音聚焦與回走問題，吸音和擴散材的搭配則成為重點。此外，兩教堂分別為舊建物內裝翻修和已經定案之新建工程，擬定方案時也特別考慮各自實務上之限制。
研究結果顯示，座椅上添加襯墊或吸音材可以有效減緩空滿席之間餘響時間差異，且未必需要應用於全體座位區。懷恩堂僅於前段窗戶添加吸音幕簾搭配二樓座位區之吸音，餘響時間即可落入期望範圍；中國佈道會在弧形厚牆添加微孔吸音板後，可同步改善聲音聚焦和清晰度問題，並調節空滿席之差異，若在前、中段牆面進一步加入搭配後方折板牆之透聲處裡，可更有效化解聚焦問題。

Due to the high volume and the use of wooden chairs in church space, there are generally insufficient speech clarity and changes of reverberation time due to differences in occupancy conditions, and various types of acoustic defects are often formed due to special geometric forms. Therefore, this study takes the Grace Baptist Church and Open Heaven/Evangelize China Fellowship Church as examples to discuss the above-mentioned problems and their solutions.
This study uses commercial acoustic performance simulation software to simulate the current situation and the acoustic performance of the comparison solution. In the existing Grace Baptist Church, field measurements are first carried out as a reference for computer simulation settings. In addition to the problems of insufficient speech clarity and changes of reverberation time, the flutter echo caused by the parallel large windows in the space of Grace Baptist Church can be solved by installing curtains, and then combined with sound-absorbing treatment of seats, walls, ceilings, and other parts to simultaneously reduce reverberation time and control its variability. The curved surface shape of the Open Heaven/Evangelize China Fellowship Church will cause problems of sound focus and whispering gallery effect, and the combination of sound-absorbing and diffusing materials has become a key solution. In addition, as these two churches are the interior renovation of the old building and new construction projects that have been finalized, and the practical limitations of each are also taken into consideration.
The research results show that adding cushions or sound-absorbing materials to seats can effectively reduce the difference in reverberation time between empty and occupied condition, and it does not necessarily need to be applied to the entire seating area. Grace Baptist Church only added sound-absorbing curtains to the front windows to match the sound-absorption of the seating area on the second floor, and the reverberation time fell within the expected range of 2.4 second. Likewise after Open Heaven/Evangelize China Fellowship Church added micro-hole sound-absorbing panels to the curved thick walls, it could simultaneously improve sound focus, In order to solve the problem of speech clarity and adjust the difference between empty and occupied condition, if the front and middle walls could installed with the sound-transmitting panel on portion of the rear folding wall, the sound focus problem can be more effectively resolved.

中文文獻
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C3.黃偉菱(2021)，梯田環繞型音樂廳邊界牆及天花板之聲學設計探討。(碩士)，國立臺灣科技大學，台北市
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C5.賴信佑(2021)，以衍生設計手法探討環繞型梯田音樂廳於初步設計上的應用。(碩士)，國立臺灣科技大學，台北市
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