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Saturday, May 30, 2009

Learn About Virtual Surround Sound Systems

By Dave Heebs

It seems like everyone is looking to create a home theater setup nowadays. The marriage of the visual components (TV and DVD), as well as the audio components (stereo), attracts many people to the entertainment possibilities of a home theater. As with most things in the United States, bigger is better for many people so they naturally gravitate to larger televisions and louder stereos. But, all too often the financial issues creep up and they then must consider their limitations on what they can afford. For this reason alone, virutal surround sound systems are a boon.

One big consideration you will need to address is the size of the room which you are planning to place the home theater in. An extremely large television or speaker system will not allow much room for your guests to sit comfortably in a small room. For this reason, you will want to scale down your speakers if you are going to place the home theater system in a small room.

If your space is limited, all is not lost. Technology has advanced to the point where speakers are not only smaller but can be used wirelessly.

Another technological advance is one of virtual surround sound. This technology simulates the sound characteristics of true surround sound systems. Virtual surround sound systems basically come in two flavors that are not too different from each other. These two are the 2.1 surround system and the digital sound projection system.

Traditional surround sound systems are typically displayed using 5 speakers. These speakers start with a center speaker which is placed directly in front of the audience. The other 4 speakers are then arranged in a circle that literally surrounds the audience. These traditional surround speakersd are usually denoted as 5.1 and 7.1 sound systems. With virtual surround sound, at least 2 of the speakers are replaced. Digital sound projectors utilize small speakers that are placed in a line in front of the audience. The 2.1 system places only 2 speakers in front of the audience with a third, the subwoofer, placed elsewhere in the room.

The virtual surround system is designed to take advantage of our knowledge of how humans process auditory stimuli. When the human ear is processing the sound waves internally, these new systems fool the auditory process into thinking that more speakers are in use than actually are.

With the invention of virtual surround sound, those people living in small apartments in major cities can also enjoy the same type of entertainment as those who live in single family homes in the suburbs. - 18758

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