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Convention Paper

The Challenge to Find the Optimum Radiation Pattern and Placement of Stereo Loudspeakers in a Room for the Creation of Phantom Sources and Simultaneous Masking of Real Sources

Authors: Linkwitz, Siegfried

AES Convention 127 · Paper 7959 · October 2009

Abstract

Stereo sound reproduction relies upon the creation of an illusion. Ideally the two loudspeakers and the room disappear, leaving only a phantom acoustic scene to be listened to. The polar frequency response of a loudspeaker determines the angular distribution of room reflections and their spectral content. The placement of the loudspeakers relative to the room surfaces determines the initial delay of the reflections. Together they affect the formation of phantom sources. A proven loudspeaker and room configuration is proposed as starting point for listening tests to determine the optimum loudspeaker radiation pattern. It is an invitation to extend our understanding of the psycho-acoustic processes that are involved with stereo listening in a room and to replace anecdotal with scientific evidence.

Details

Published in
AES Convention 127
AES Convention
127
Paper number
7959
Publication date
October 6, 2009
Session subject
Loudspeakers in Rooms
Affiliation
Linkwitz Lab, Corte Madera, CA, USA (See document for exact affiliation information.)
Type
Convention Paper