When binaural audio signals containing directional cues are presented with loudspeakers, the listener should still be able to localize sound images and experience a realistic three-dimensional sound environment. Because acoustic crosstalk between loudspeaker channels degrades performance, it is necessary to preprocess the binaural signals with a crosstalk cancellation system. However, a limited sweet spot is still a challenge especially when the head is laterally misaligned. To increase the robustness of the reproduction system, a direct multidrive array configuration with multiple control points is combined into the optimal source distribution strategy. The research goal is to find a good trade-off between the crosstalk cancellation performance and a high tolerance to head misalignment. Both simulations and experiments demonstrate the efficacy of the method, and the system is well suited to large display devices.

Authors: Zheng, Jianwen; Zhu, Tianyi; Lu, Jing; Qiu, Xiaojun
Affiliations: Key Lab of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing, China; School of Electrical and Computer Engineering, RMIT University, Melbourne, Australia(See document for exact affiliation information.)
JAES Volume 63 Issue 9 pp. 725-735; September 2015
Publication Date: October 6, 2015

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