Multichannel spatial surround sound system

A spatial surround sound system which is compatible with 5.1 channel horizontal surround sound system is proposed. The results of sound image analysis and experiment show that, the system is able to recreate sound image in the upper hemispherical space. It can not only reproduce stable image in the front and rear direction, but also eliminate the defect of poor lateral image of 5.1 channel system. Furthermore it has a wide listening area. Hence the system can be used to reproduce special 3D sound effect and the spaciousness of hall.