A new robust system for 3D audio using loudspeakers

It is well known that the effectiveness of loudspeaker-based 3D audio systems is critically dependent on the listener being in a known position, the so-called “sweet spot”. In this paper we propose a new system that provides increased robustness to perturbations such as head movement, reverberation, and different head shapes. The system is based on using a particular geometry that offers a combination of symmetric and asymmetric loudspeaker positions. This combination increases the bandwidth over which the proposed system is robust, when compared with existing 3D audio systems