Abstract
Acoustic crosstalk cancellation is a signal processing technique whereby two (or possibly more) loudspeakers are used to deliver desired signals exactly at the listener's ears. Such a system is useful for three-dimensional (3-D) audio applications, and removes the requirement for the listener to wear headphones. However, crosstalk cancelers are notoriously nonrobust to slight movements in head position. Recently, a system consisting of two closely spaced loudspeakers (referred to as the stereo-dipole) has been proposed to improve the robustness of the crosstalk canceler. In this letter we present a robustness analysis of the two-channel crosstalk canceler, and derive optimum loudspeaker positions.
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