NHK Laboratories Note No. 456

A SYSTEM FOR MEASURING THE DIRECTIONAL PARAMETERS OF ROOM ACOUSTICS.

by
Hiroyuki Okubo, Masamichi Otani, Ryo Ikezawa and Setsu Komiyama
(Three Dimensional Audio-Visual System Research Division)

Fig. 1 Fundamental structure of the measuring system.



Fig.2 Relation between incident angle of reflection sound and directional physical parameters.



Fig. 3 Directional patterns of microphone probe



Fig. 4 Estimation of LC calues



Fig. 5 The directional parameters (HALL1)



Fig. 6 The directional parameters (HALL2)






Copyright 1999 NHK (Japan Broadcasting Corporation) All rights reserved. Unauthorized copy of the pages is prohibited.

BackHome