Realization of surround audio by a quadraphonic headset

In this work, a four-channel headset achieving the 5.1-channel-like hearing experience is presented. It includes a 5.1-to 4-channel down-mixer, head related transfer function, and artificial reverberation in a closed space. From experiments, the proposed headset achieves similar hearing perception as a 5.1-channel loudspeaker system with much lower hardware cost.