AutoCAD-Based Image Method for Acoustical Model

摘要

In order to make it possible for an architect and an acoustical designer working together on the same platform, this paper introduces a method to calculate the first two reflections in AutoCAD. The proposed method is based on the image method, and is implemented by using Auto LISP language of AutoCAD. By using this method, the coverage of reflected walls and the time sequence of the first two reflections in a shoe-box-shaped concert hall and a gymnasium are obtained. The results verify the validity and effectiveness of the proposed method.