Just in case you don’t know how your best home theater 5.1 channel surround sound system works, then don’t worry. The 5 indicates the number of full-range audio speakers while the 1 indicates that there is one subwoofer. A 7.2 or a 9.2 surround sound system indicates there are two subwoofers along with either 7 or 9 full-range audio speakers.
Each of the speakers in the 5.1 system has a purpose as well as a designated position in the room. The center channel speaker is mostly responsible for the movie dialog and the subwoofer is responsible for low frequency sounds from thunder, drum sounds or any other low bass sounds. The rest of the speakers provide sounds like shell casings, birds chirping , wind blowing, ect.
The center-channel speaker needs to be placed below the tv sitting on the stand or even mounted just above the tv if you prefer. The subwoofer can be placed anyway in the room but the rest of the speakers should be placed directly on each side of the tv screen as well as on the left and the right just behind the viewing space while facing the tv.
Each dvd has encoded information that directs which sounds come out of each speaker to give the sound much more detailed depth than a soundbar can give you.
When audio engineers create movie soundtracks, they separate different sounds into discrete tracks — or channels — to take advantage of the surround sound experience. This is done by assigning particular noises, sounds, effects and music to one of the five primary channels to help give the viewer a sense of space. For example, if a police car is seen traveling from left to right on the screen, the siren noise may originate in the left front channel, then pass to the center channel and then to the right front channel before fading out. Similarly, an engineer could assign siren noises to the left and right rear channels to provide a sense that a police car has passed behind the viewer unseen. All of this information is encoded into the DVD or Blu-ray Disc, decoded by the home theater receiver and assigned to the correct speakers automatically.
Until more movies are produced in 5.1 sound, I would highly recommend purchasing a 5.1 surround sound system if you are faced with the decision between all the various surround sound systems. Having the best home theater 5.1 channel surround sound system will provide you with an impressive sound experience that will keep you entertained for many years to come.
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