Patent ID: 11962995
Assignee: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 1:
2. The virtual reproduction method for the multichannel spatial surround sound in three-dimensional space according to claim 1, wherein in the step 10, the sum and difference operation is carried out on the total sum signal ESUM and the total difference signal EDIF of the horizontal layer, and the signals are attenuated by −3 dB, which is, multiplied by 0.7 to respectively obtain the reproduction signals EL1=0.7 (ESUM+EDIF) and ER1=0.7 (ESUM−EDIF) of the actual loudspeakers at left-front and right-front directions respectively in the horizontal plane, and the signals are fed to the corresponding actual loudspeakers for reproduction.