How does the “surround-sound” technique work

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…audio input. This was called Dolby Digital 5.1 (the 5 being the FL, FR, SL, SR, and C, and the .1 being the Subwoofer). Multi-track audio is more prominent and involving as it no longer needs a decoder to try to position the effects around the audience, but now is totally reliant upon the intended position that the film creator intended. Special effects can come from all around the listener with the audience feeling surrounded by the movie.