Audio output system of 3D sound by selectively controlling sound source

A system for providing multi-dimensional sound output through selective control of sound sources, the system comprising:

• A sound source extraction unit that filters out a video source from a predetermined terminal to which a sound source is applied together with a video source and selectively extracts only the sound source;
• A sound source processing unit that performs upmixing of the sound source extracted by the sound source extraction unit through a predetermined sound source processing, and processes the upmixed signal into a two-channel multi-dimensional sound signal through selective control;
• A sound source transmission unit that separately transmits the two-channel multi-dimensional sound signal processed by the sound source processing unit to the left and right speakers of the terminal.