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.
Author:
Linkwitz, Siegfried
Affiliation:
Linkwitz Lab, Corte Madera, CA, USA
AES Convention:
127 (October 2009)
Paper Number:
7959
Publication Date:
October 1, 2009
Subject:
Loudspeakers in Rooms
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