Patent ID: 6934395
Filing Date: 2005-08-23
Classification: H04R,H04S

Abstract:
1. A surround sound field reproduction system for forwardly localizing a sound to which a listener is directed from among omnidirectionally collected sounds, comprising: a plurality of horizontal panner means for individually receiving a plurality of sound signals of different input channels collected from sound sources distributed in a range of 360 degrees in a horizontal direction and distributing sound levels of the sound signals of the input channels in an interlocking relationship with each other to a plurality of output channels to control the horizontal localization; vertical panner means for receiving a plurality of sound signals of different input channels collected from sound sources distributed in a range of 180 degrees in a vertical direction, changing a level distribution of the sound signals of the input channels to produce a sound signal and outputting the produced sound signal to an output channel for the front center to control the vertical localization; and a number of mixing buses determined with reference to the number of output channels necessary for a reproduced sound field, outputs of said horizontal panner means being level-distributed to all of said mixing buses, wherein said mixing buses include five buses for the forward left, the forward center, the forward right, the backward left and the backward right to be mixed for horizontal localization, and wherein said input channels include totaling eight channels including six channels for inputting sound signals of six directions collected from six directions of the forward left, the forward right, the left, the right, the backward left and the backward right in a horizontal direction and two channels for inputting upper and lower sound signals in a vertical direction, and said output channels include totaling five output channels including four output channels connected to four mixing buses for the forward left, the forward right, the backward left and the backward right and one output channel connected to the remaining mixing bus for the forward center for forward localization and an output of said vertical panner means to which the upper and lower input channels in the vertical direction are inputted.