Dolby Digital - This is a digital surround sound technology used in movie theaters and upscale home theater systems that enhances audio. Home theater components with this technology work in conjunction with a "5.1-speaker" system (five speakers plus a low-frequency subwoofer) to produce true-to-life audio that draws the listener into the onscreen action.
Composite Video Connection - A method to interconnect video devices (such as a DTV set-top box and the analog television) by sending the signal over a single cable. This method is suitable only for analog NTSC signals
LFE - (Low Frequency Effects) - Sub-woofer. The 6th channel in a 5.1 channel system.
Dolby Digital (Dolby AC-3) - The 5.1 channel audio standard for DTV and HDTV in Canada and the USA. It includes six discreet audio channels - Left, Center, Right, Left Surround (or side), Right Surround (or side), and a subwoofer -- LFE, "low frequency effects" -- (considered the ".1" as it is limited in bandwidth). Many televisions process these six channels into a two channel stereo pair and do not provide the full 5.1 channel surround sound.
PSIP - Acronym for "Program and system information protocol", an ATSC DTV specification that enables a DTV receiver to identify the program information and to create on-screen electronic program guides and content advisories.
LCD - (Liquid Crystal Display) - A common display technology. LCD is likely to replace CRTs in the smallest HDTV's.
STB - (Set Top Box) - These include satellite receivers, cable TV receivers, OTA receivers, and various recording devices.
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