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What Does Dolby Digital Do For Your Sound System

Jan 15, 2008
One of the major players in the surround sound game is the Dolby Digital technology that is used by many of the new systems. When we go to the theater, they often advertise that the movie we are about to see is being broadcast with "Dolby Digital Surround Sound." This is supposed to impress the moviegoers and the home theater system purchasers. But does anybody actually know what the Dolby Digital technology consists of? There are many variations within the Dolby Digital technology, but the basic idea remains the same throughout the variations.

Specifically, the term "Dolby Digital" refers to a digitally enhanced encoding system used by many audio devices for sending and receiving sound signals. Dolby is the name of the laboratory that perfected the technology and it is one of the forerunners in the competition for a bigger and better audio experience. There are competitors in the audio industry, but Dolby is the most prominent and widely-used currently.

The Dolby Digital technology can support either a single channel or several channels so that audio can be broadcast either with stereo or monophonic qualities. It is used mainly with digital devices (DVD player, CD player, digital TV, movie theaters, etc.) and there is a special type of Dolby Digital technology that can be used to enhance your gaming experiences in a more realistic way.

A man by the name of Ray Dolby began the phenomenon about 50 years ago. He started by wanting to cut down the white noise and ever present static commonly found in audio devices back then. The overall clarity was degraded by this static noise, so Mr Dolby set about finding a solution to this problem. Initially the Dolby Digital technology was used by record companies but very quickly was embraced by the movie theaters.

As a result the Dolby Digital technology was born. Originally it was in a very compressed formatting aimed at the movie theaters. The first time this technology was used en mass was in a movie by the name of "Batman Returns" in 1992. It merged a stereo sound using left and right channels to produce a much more sharp sound. As a result of the success of this initial movie it became the standard way to make movie sound systems.

The future of the Dolby Digital continues to improve on the technology that the Dolby laboratory has already created. It has made the movie viewing experience an experience of being fully immersed in sound and sight - both at the theaters and at home. This technology comes standard in the USA and is included in almost all of the DVD players and other audio/visual devices sold today. With an ever-changing home theater system technology, Dolby continues to stay ahead of the competition in bringing quality audio enjoyment to the avid, and even occasional, movie lover.
About the Author
Before you purchase your home theater system it would be wise to understand about Dolby Digital and what it can do to make your home theater system something to be enviously admired and copied.
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