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Posted 05 October 2010 | News & Blog   




The Glossary of Home Theater Electronics

Have you ever struggled on Home Theater communication or “lingo”? Have no idea when someone ask’s you a question on Home Theater Electronics or TV Installations? Well, Plasma LCD n Parts of Houston will explain the “lingo”.

A surround sound rear channel system consisting of a radio frequency (RF) transmitter that connects to the rear channel outputs, and a radio frequency receiver some distance away that amplifies and delivers audio to the surround speakers. Shown in the photo is a Samsung wired/wireless surround sound system. Some wireless surround systems employ infrared technology rather than RF. A good article

Wireless Fidelity, a local area networking technology that allows computers and electronic devices to access each other and the network, which may or may not be connected to the Internet through a gateway

Any remote control that is capable of replicating the control signals from a variety of individual remotes. For home theater, a number of universal remotes enable “macro” recording that, with a single button press, will make automate each aspect of the home theater experience: equipment power and mode; sound level, lighting, screen and projector deployment, drape close, security lighting etc. The Harmony 1000, pictured, uses a USB connection to a home computer for easy programming.

The sound reproduction system standard created by George Lucas for use in theaters. THX has spread to home theaters as a quality control system realized through certification of hardware (electronics).

Very popular music encoding (compression) and distribution format.

“PLASMA” (display)
A technology used to manufacturer large flat panel HDTVs. See Plasma HDTVs often have a glass face, making them unsuitable in bright rooms due to glare and reflections.

Literally, Sony’s brand of high performance electronic gaming technology, as in DVD-based PS3. Other comparable brands suited for HDTVs include Microsoft’s Xbox 360 and Nintendo Wii. See;;

An amplifier that works primarily with very low level signals to prepare them for standard amplification

Any electronic device that is capable of displaying images on a screen located some distance away

Lighting Scene Controller

Literally, audio that appears to originate from any point around a listener.

an electromechanical device that responds to low frequency sounds by causing a physical object, such as a chair, floor or wall, to move slightly, enabling a listener to “feel” as well as hear the sound. Also called butt kicker and bass shaker, tactile simulators have gained popularity in home theaters. They may be used in place of or in addition to a subwoofer.

An electronic device that allows two signals to be joined and presented as one. A Karaoke mixer, for example, joins or mixes audio from hand held microphones with CD and/or DVD audio for playback through a stereo system. Depending on mixer capabilities, the acoustic characteristics (treble, bass, pitch key) of the source can be modified

A flatscreen projector that uses DLP, LCD, or LCoS chip technology in combination with an intense light source to project an HDTV image onto a much larger surface

“5.1, 6.1, 7.1″
The number of discrete front, rear and subwoofer channels encoded with the Dolby Digital system. For example, 5.1 means five speakers devoted to front and rear channels, one speaker devoted to the subwoofer channel. The front array nearly always consists of three speakers — left/center/right. See Dolby and Surround Sound

An electronic device that boosts the power of a signal. In a surround sound receiver, for example, each sound channel employs an amplifier connected to the volume control to adjust the loudness of the output

“Bass Shaker”
SEE Tactile Simulator

A blue-violet laser-based technology used to encode and read high definition DVDs, which store 50 GBytes (about 6X more than standard DVDs)

SEE Tactile Simulator

Consumer Electronics Design and Installation Association

An electronic device that uses digital codes embedded in a stream of music or video to separate channels and/or set operational modes.

Digital Light Projector produced by an optical semiconductor chip

also Dolby Digital, Dolby EX, Dolby Pro Logic. Technology from Dolby Laboratories that reduces noise (Dolby B, Dolby C), and encodes (digitally compresses) sound into discreet channels. Dolby 5.1 includes left front, center, right front, left surround and right surround channels. Dolby EX, also termed 6.1 is an enhancement that adds a sixth channel between the two surround channels. When two speakers are employed in EX, the term 7.1 is used.

Digital Visual Interface. A video interface standard usually associated with flat panel LCD computer displays and high performance video cards. Many high definition televisions and projectors include a DVI connector (connecting cable pictured), allowing direct connection to a computer that supports the standard.

Digital Video Recorder. See TiVo

Generally, any television screen that does not have curvature. However, the term has become synonymous with LCD, Plasma and Microdisplay (DLP) wide screen TVs. Plasma and LCD TVs are also relatively thin, so the term flat screen sometimes implies the ability to mount the TV on a wall.

High definition television. Generally, a television with a 16:9 image that doubles the resolution of standard TV. Dolby Digital sound is included in the definition. The CEA’s definition sets the image at 720 progressive (720p) or 1080 interlaced (1080i) horizontal scan lines. A 720p TV has 1280 pixels per line, hence it is sometimes stated as 1280 x 720 resolution. A 1080i TV has 1920 pixels per line, hence 1920 x 1080 resolution. The latest entry in HDTV is 1080p or 1080 scan lines progressive, and this resolution is favored by gamers.

High Definition Multimedia Interface. A physical and electronic connection format for HDTV that combines DVI and digital audio. Used between the HDTV and signal source, such as the set top box or satellite decoder box. Compatible with high bandwidth digital content protection (HDCP) and digital rights management (DRM).

Apple Computer’s proprietary music player

Imaging Science Foundation, a training and hardware certification organization.

An entertainment scheme permitting amateurs to sing along with recorded professional music and musicians, using microphones. A Karaoke mixer like the VocoPro CDG6000, pictured, decodes lyrics included with the recorded music and presents them on an HDTV (or standard TV).

is the first tablet computer from Apple.The iPad is a flat, rectangular computer with a large, 9.7-inch touchscreen on its face. It is 0.5 inches thick and weighs 1.5 pounds. It comes in six models – 16GB, 32GB, and 64GB, with or without 3G connectivity. All models offer WiFi Runs a version of the iPhone operating system and, as a result, can run programs from the App Store. It allows existing apps to upscale their size to fill its entire screen (newer apps can be written to fit its larger dimensions).

The iPhone is Apple’s first Internet-enabled smartphone. It combines the features of a mobile phone, wireless Internet device, and iPod into one package.
Perhaps the iPhone’s most innovative feature is its 3.5-inch multitouch screen. This screen allows an interface based on touch, rather than a keyboard, mouse, or stylus, and allows items onscreen to be manipulated by two finger touches, rather than just one. The iPhone can also be viewed in landscape or portrait mode, with the screen automatically shifting based on the angle that the phone is held at.

“Apple TV”
The Apple TV is a device that allows consumers to stream iTunes data from computers to the their HD TVs. The device is what is known as a set-top box, because it connects to the TV (or is a box that sits on the top of the TV set).

The device syncs with the iTunes library on a computer in the same house and then allows the user to stream songs, videos, pictures, and other data that reside in that iTunes library (including both content bought from the iTunes Store and added in other ways) to the TV and entertainment center. The AppleTV only works with iTunes to sync and play media.


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