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Convention Paper

The Minimum Number of Loudspeakers and its Arrangement for Reproducing the Spatial Impression of Diffuse Sound Field

Authors: Hiyama, Koichiro; Komiyama, Setsu; Hamasaki, Kimio

AES Convention 113 · Paper 5696 · October 2002

Abstract

It is important to find out how many loudspeakers are necessary for multichannel sound systems to reproduce the spatial impression of diffuse sound field. This paper discusses this issue in the case when loudspeakers are placed, symmetrically along a concentric circle around the listener, and at the same height of the listener's ear. It becomes clear that the spatial impression of diffuse sound field can be reproduced by only two symmetrical pairs of loudspeakers (that is, four loudspeakers in all). On this arrangement, one pair of loudspeakers should be place in the frontal area around the listener with an angle of about 60 degrees, and the other pair should be in the rear area with an angle of 120 to 180 degrees.

Details

Published in
AES Convention 113
AES Convention
113
Paper number
5696
Publication date
October 6, 2002
Session subject
Recording and Reproduction of Audio
Affiliation
Three Dimensional Audio-visual System Div. Science and Technical Research Lab. NHK, Setagaya, Tokyo, Japan (See document for exact affiliation information.)
Type
Convention Paper