Auditory Distance Control Using a Variable-Directivity Loudspeaker†
AbstractThe directivity of a sound source in a room influences the D/R ratio and thus the auditory distance. This study proposes various third-order beampattern pattern designs for a precise control of the D/R ratio. A comprehensive experimental study is conducted to investigate the hereby achieved effect on the auditory distance. Our first experiment auralizes the directivity variations using a virtual directional sound source in a virtual room using playback by a 24-channel loudspeaker ring. The experiment moreover shows the influence of room, source-listener distance, signal, and additional single-channel reverberation on the auditory distance. We verify the practical applicability of all the proposed beampattern pattern designs in a second experiment using a variable-directivity sound source in a real room. Predictions of experimental results are made with high accuracy, using room acoustical measures that typically predict the apparent source width. View Full-Text
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Wendt, F.; Zotter, F.; Frank, M.; Höldrich, R. Auditory Distance Control Using a Variable-Directivity Loudspeaker. Appl. Sci. 2017, 7, 666.
Wendt F, Zotter F, Frank M, Höldrich R. Auditory Distance Control Using a Variable-Directivity Loudspeaker. Applied Sciences. 2017; 7(7):666.Chicago/Turabian Style
Wendt, Florian; Zotter, Franz; Frank, Matthias; Höldrich, Robert. 2017. "Auditory Distance Control Using a Variable-Directivity Loudspeaker." Appl. Sci. 7, no. 7: 666.
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