How does the “surround-sound” technique work? Surround Sound which was introduced by Dolby Laboratories Inc to position sound around the audience so that the effects within movies would make them feel as though they were really there. The use of directional sound from different points in the room according to their depth, sharpness and clarity was the main goal. Starting off from a standard called Dolby Stereo, two separate channels were introduced, both left and …showed first 75 words of 367 total…

…showed last 75 words of 367 total…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.