| 摘要 |
PURPOSE: A device for a system of enlarging sound field of common mode and antiphase controlling-type stereo is provided to reduce loss of the original sound and enhance a third dimensional sound image without using a phase shift or a delay circuit and minimize the size of signal processing circuit so as to minimize any possible noise caused by various reasons and improve the stability of the sound. CONSTITUTION: A device for a system of enlarging sound field of common mode and antiphase controlling-type stereo includes the following steps. A gain controller(101, 104) inputs left signal input(L-IN)(10) and a right signal input(R-IN)(11) and controls the gains. A space constitution unit(105, 106) focuses on space and direction by inputting left signal input(L-IN)(10) and a right signal input(R-IN)(11). A characteristic gain controller(102, 103) controls gains by inputting signals that passed a space constitution unit(105, 106). A processor(107, 108) synthesizes the final signal from a characteristic gain controller(102, 103). The device enables users to enjoy background sounds, minute sounds that was not possible with surround type systems.
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