Dolby Digital; Dolby Surround - Meridian 800 User Manual

GLOSSARY
AC-3
An alternative name for the Dolby Digital format.
Controller
The product in a Meridian system that uses the infra-red signals from the
remote to control the system. The controller is normally chosen
automatically, but the installer can override this.
CPPM
Content Protection for Prerecorded Media, a cryptographic method for
protecting entertainment content when recorded on physical media.
CSS
Content Scrambling System, a method for protecting the copyright in
recorded works.

Dolby Digital

A digital surround-sound which provides five full-frequency range channels
(left, centre, right, left surround, and right surround) and an additional
Low Frequency Effects (LFE) channel which is band limited to 120Hz.

Dolby Surround

The encoding system used for the majority of movies on video and many TV
broadcasts. Dolby Surround encoded material can be replayed with a
surround decoder connected to an array of loudspeakers which normally
include at least left, centre, right, and rear surround.
DTS
Digital Theatre Systems originally produced digital audio tracks for motion
pictures. A version of this format adapted for consumer video and audio
products is referred to as DTS Entertainment. Like Dolby Digital it provides
five full-frequency range channels (left, centre, right, left surround, and
right surround) and an additional Low Frequency Effects (LFE) channel.
DVD
Digital Video Disc or Digital Versatile Disc, a CD-sized disc with nearly 30
times the storage capacity of CD. It is capable of storing digital video, high-
quality multi-channel audio, or computer data.
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