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Thursday, 13 December 2007
,
Written by
Richard Elen
title:
An Instant Introduction to 5.1 Audio
category:
Feature Article
review date:
September 2000
reviewed by:
Richard Elen
An Instant Introduction to 5.1 Audio
In
the beginning, there was mono, which has but one channel. And mono
begat stereo, which hath two channels. And stereo begat a whole set of
monsters, of which 5.1 is the result.
The
term "5.1" refers to the number of channels in the most common of
today’s surround-sound configurations. The "5" refers to the five main
channels – left front, center front, right front, left surround and
right surround – while the ".1" refers to the low frequency effects
channel, also known as LFE. Ideally, a 5.1 signal is provided by the
source material, such as a DVD-Video disc with a 5.1-channel Dolby AC-3
soundtrack, a DTS-encoded DVD or compact disc, or, increasingly, a
satellite TV channel. In many cases, the source is a matrixed surround
source, often a two-channel signal containing embedded surround
information such as Dolby ...
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