Loudspeaker beamformers such as commercial sound bars can be used to produce narrow beams of sound that mainly reach the listener on distinct reflection paths or the direct path in the room. What happens if such variable directivity loudspeakers create two simultaneous beams of sounds with the same signal, each of which pointing to another acoustic path in the room? What is the resulting perceived direction of such a phantom source, and how do changes of time and level differences in the signal pair affect the result? This paper investigates these questions by a listening experiment that employs an auralized 3rd order source.

Authors: Zagala, Franck; Linke, Julian; Zotter, Franz; Frank, Matthias
Affiliations: University of Music and Performing Arts Graz, Graz, Austria; Institute of Electronic Music and Acoustics, IEM, Graz, Austria(See document for exact affiliation information.)
AES Convention: 142 (May 2017) Paper Number: 9805
Publication Date: May 11, 2017
Subject: Sound Zones

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