Model Investigations to Determine the Sound Absorption Coefficient in Reverberation Rooms Modelluntersuchungen zur Bestimmung des Scliallabsorptionsgradcs in Hallraumen Etudes sur modeles de la determination du coefficient d'absorption du son dans ie

摘要

In a former publication [1], the results of calculations for five reverberation room models of different shape (Fig. 1) were used to show how the determination of the sound absorption coefficient may be influenced by differences in the sound field configuration in the immediate vicinity of the specimen. These investigations were based on a ray tracing model with mirror reflections on the boundaries of the room and with a computer program which uses only vector operations in the ray tracing section.