Abstract
The present situation in the computer simulation of a sound field within a room, such as an auditorium, is introduced here, together with the practical application and application limits of the image method and sound ray method based on geometric acoustic theory. Simultaneously, the positioning of an approximate calculation method using a finite sound ray integration method incorporating the effect of the diffracted wave is presented. The introduction is followed by examples of the application of the finite sound ray integration method for calculating the reflection characteristics of an acoustic cloud. The reverberation process in the initial non-diffuse sound field, and the acoustical criteria are indicated, and based on these the effectiveness of the method is examined.
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