教室聲場改善設計模擬之研究

隨著人們對於室內生活品質日益重視，室內聲環境設計已成為熱門的議題之一。教室是學生們於學校中很重要的環境，也是教師們重要的職場。長期處於聲環境品質不佳的環境，不僅會造成師生的耳朵聽力耗損，亦可能會造成聲帶的傷害，而在身心上也會累積疲憊感。本研究以國立屏東科技大學木材科學與設計系RE218教室作為研究對象，採用實測分析與電腦模擬作為研究方法。研究先進行研究對象教室聲場量測分析，發現其整體空間的迴響時間（Reverberation Time , RT）較長。研究使用礦纖板置於天花板作為實際改善材料，並於模擬軟體中建立模型，而後進行電腦模型與實測之比對以驗證模型之可行性。結果顯示鋪設礦纖天花板後，可明顯改善教室整體的聲環境品質，迴響時間也大幅地降低。本研究進一步以電腦模擬進行改善設計，以使研究對象之迴響時間能以達到教室聲學環境標準。此外改善設計為兼顧視覺感受的需求，因此設計搭配不同裝修材作為改善空間聲場的材料，分別為木絲水泥板與台灣杉穿孔板。將材料分別置於左右後側牆壁，以電腦模擬比較兩種材料不同配置方式間的差異，以研擬最佳化設計的室內聲環境設計方案。

關鍵字

教室聲環境改善；電腦聲場模擬；教室裝修

並列摘要

With people pay more attention to the quality of life. The design of indoor sound environment has also become to the essential topics. Classroom is an important environment for students, and it also an important workplace for teachers. Stay in the environment with poor sound quality for a long time will not only cause hearing loss, but also damage to teachers' and students' ears and throats, as well as accumulate a sense of physical and mental fatigue. Therefore, we selected the RE218 classroom of the National Pingtung University of Science and Technology as our research object, Used measure analysis and computer simulation as research methods. The research tested the data from the research field first and found that the overall Reverberation Time (RT) of the research object is longer. The study was using mineral fiber on the ceiling as material improvement and creating the model in the simulation software. Then, comparing the actual feasibility of the model. After laying the mineral fiber in the simulation, the sound quality has been upgraded in the classroom, and the RT has been significantly reduced as well. The researcher decided to keep on improving the results by simulation, in order to achieve the average standard of the research subjects. We are considering the demand of visual perception, therefore, we use different decoration materials to improve the sound of the space. The materials are Wood Wool Cement Board and Taiwania Cryptomerioides punching plate. Placed the materials on the left and right side walls, used computer simulation to compare the differences between the different configuration methods of the two materials to develop an optimally designed indoor acoustic environment design scheme.