There is a very large vocabulary of technical and descriptive terms that go with home theater. We've included the terms that you are most likely to encounter. If you are very technically involved you may find some of the more technical terms omitted from our list.
Click on a letter to jump to that section of our glossary
Gain - The Measurement of the
reflectivity of a surface, such as a projection screen. The
higher the number the greater the amount of reflected light
and thus the brighter the image.
Gamma - When an image is filmed and then
replayed, there is a difference from the original. Some parts of the
image are more different than others. The relationship between any point
of the display and the original can be displayed on a graph. This relationship
is the gamma.
Gamma Correction - To restore
a displayed image to the appearance of the original, gamma
correction must be applied.
Geometric Distortion - The
bending of straight lines and distortions, especially at the
corners of the screen.
Grayscale - The range of gray
gradations from pure white to pure black.