Home Theatre Explained.

"The secret to film is that it's an illusion"

George Lucas.

Home cinema, also called home theatre, seeks to reproduce cinema quality video and audio in the home.

Technically, a home cinema could be as basic as a simple arrangement of a television, DVD and a set of speakers. It is therefore difficult to specify exactly what distinguishes a "home cinema" from a "television and stereo". Most people in the consumer electronics industry would agree that a "home theater" is really the integration of a relatively high-quality video output with surround sound.

Design

Today, "home cinema" implies a real "cinema experience" and therefore a higher quality set of components than the average television provides. A typical home theater includes the following parts:

1. Input Devices: One or more audio/video sources. High quality formats such as HD DVD or Blu-ray are preferred, though they often include a VHS player or Video Game Systems. Some home theatres now include a home theater PC to act as a library for video and music content.

2. Processing Devices: Input devices are processed by either a standalone AV receiver or a preamplifier and Sound Processor for complex surround sound formats. The user selects the input at this point before it is forwarded to the output.

3. Audio Output: Systems consist of at least 2 speakers, but can have up to 11 with additional subwoofer.

4. Video Output: A large HDTV display. Options include Liquid crystal display television, video projector, plasma TV, rear-projection TV or a traditional CRT TV.

5. Atmosphere: Comfortable seating and organization to improve the cinema feel. Higher end home theaters commonly also have sound insulation to prevent noise from escaping the room, and a specialized coating to ensure correct absorption of the sound in the room.

Component systems vs. Theater-in-a-Box

High-quality home cinemas are assembled from component pieces purchased separately to provide the best combination of equipment for the cost. It is possible to purchase home theatre in a box kits that include a set of speakers for surround sound, an amplifier/tuner for adjusting volume and selecting video sources, and sometimes a DVD player. Though these kits often pale in comparison to a custom-built home cinema, they are inexpensive and easy to set up; one needs only to add a television and some movies in order to create a simple home theater.

Dedicated home theaters

Some home cinema enthusiasts go so far as to build a dedicated room in the home for the theater. These more advanced installations often include sophisticated acoustic design elements, including "room-in-a-room" construction that isolates sound and provides the potential for a nearly ideal listening environment. These installations are often designated as "screening rooms" to differentiate from simpler installations. This idea can go as far as completely recreating an actual cinema, with a projector enclosed in a projection booth, specialized furniture, a piano or theatre organ, curtains in front of the projection screen, movie posters, or a popcorn or snack machine. More commonly, real dedicated home theatres pursue this to a lesser degree.

From Wikipedia, the free encyclopedia.