Home Theatre Systems

Home Theatre Systems Glossary

5.1 Channels
Surround sound, which comprises of five speakers and a subwoofer (for bass).
7.1 Channels
Surround sound, which comprises of seven speakers and a subwoofer (for bass).
True HD
The highest screen resolution available, measuring 1920x1080 pixels (1080p). True HD is available with Blu-ray, PS3 and HD-DVD players.
Dolby Digital
A digital audio compression format, developed by Dolby Laboratories. It is the world standard format for 5.1 channel surround sound.
Dolby Pro Logic II
Digital sound decoder that enables 5.1 channel surround sound from stereo (two-channel) sources, like CDs. It also enables surround sound from games consoles such as Nintendo Wii.
DTS
Digital Theatre Systems Inc. is a specialist company that produces multi-channel digital surround sound for movies.

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