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A Linear Robust Binaural Sound Reproduction System with Optimal Source Distribution Strategy

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.

JAES Volume 63 Issue 9 pp. 725-735; September 2015
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