声频工程中的计算机辅助设计

Computer-aided design in audio engineering

厅堂音质经典设计方法中最常用的是几何声线作图法,现在计算机辅助技术已开始较为广泛应用于声频工程的设计与建设中,以几何声学为基础的声线跟踪法及虚拟声源法为基础的计算机声场模拟技术,可较为准确的预测厅堂场馆的声学特性,评估与调整厅堂场馆内建筑声学的设计思路与方案,以及扬声器的型号选择与点位设置,使得厅堂音质辅助设计的效率与准确性大为提高。计算机辅助设计与声学缩尺模型配合使用,发挥各自优点,可以更好的解决厅堂音质的评价问题。

Geometric sound line drawing is the most common method used in classical design of auditorium acoustics. Now computer aided technology has been widely used in the design and construction of audio engineering. Ray-tracing method based on geometric acoustics and computer sound field simulation technology based on virtual source method can accurately predict the acoustic characteristics of halls,evaluate and adjust the architectural acoustics design scheme and the selection and layout of loudspeakers in the hall,and greatly improve the efficiency and accuracy of auditorium acoustics aided design.Computer-aided design and acoustical scale model can be used together to give full play to their respective advantages,which can better solve the problem of auditorium acoustics evaluation.