4 Terms
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Home theatre system
Of or relating to private home entertainment set-ups that seek to reproduce the cinema going experience with the help of video and audio equipment.
Industry: Consumer electronics
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Home theatre system
Aspect ratio (AR)
Consumer electronics; Home theatre system
The width of the screen as a ratio of its height. A standard TV screen is four units wide to three high, so is described as 4:3 or 1.33:1. A widescreen TV has an aspect ratio of 16:9 or about 1.78:1. ...
Colour difference
Consumer electronics; Home theatre system
These are two of the three components of a colour video signal. One is the Red colour difference signal, called variously Y-R or CR while the other is the Blue colour difference signal (Y-B or CB). ...
Compact disc (CD)
Consumer electronics; Home theatre system
This is the familiar 120mm optical disc. It carries a digital PCM representation of a two channel analogue signal, along with error correction information. The analogue signal is sampled at 44,100 ...
Composite video
Consumer electronics; Home theatre system
This is the way that the three component video signals are wrapped together to form a single signal, suitable for TV broadcast or carrying on a single two-conductor cable. The two colour difference ...
Component video
Consumer electronics; Home theatre system
Three components of a video signal that, together, constitute the full signal. The three components are luminance (Y), red colour difference (CR) and blue colour difference (CB). These can be wrapped ...
Artefacts
Consumer electronics; Home theatre system
Unwanted visible effects in the picture created by disturbances in the transmission or image processing.
Dither
Consumer electronics; Home theatre system
Very low level noise, usually 'white' in character, added to a digital audio signal to reduce harmonic distortion. It typically is just a random variation in the least significant bit of the digital ...
