Audio Terminology And Definitions
16 x 9 This
is the standard scr screen that has 1.78 units of horizontal width to 1 unit of
vertical height. All current TVs support this aspect ratio. TV programming or
video content transmitted or fed to a TV that is not in the 16x9 aspect ratio
will appear on the screen either with black bars on the top and bottom of the
image ("letterboxing") or black bars on either side of the image ("pillarboxing").
"Windowboxing," another strategy for displaying 16 x 9 content on a screen
that does not have a 16 x 9 aspect ratio, centers a slightly smaller image on
the screen surrounded by a black border on all four sides.
Technology used in many video projectors that employs three LCD chips (one for
each primary color: green, blue, and red) to produce an image.
interlaced image with 480 lines of vertical resolution scanned alternately—odd
lines first, then even lines. 480i is commonly referred to as "standard video
images contain 480 lines of vertical resolution scanned. 480p is similar to the
resolution of standard broadcast TV (and is referred to as SDTV, or Standard
Definition Television), but the image is scanned progressively, rather than in
4k Resolution The
term 4K refers to one of two high-definition resolutions: 3840 x 2160 pixels or
4096 x 2160 pixels. 4K is four times the high-definition resolution of 1080p
(1920x1080 pixels), which is currently one of the primary consumer
high-definition resolution standards.
image contains 1280 pixels displayed across the screen horizontally and 720
pixels displayed down the screen vertically, yielding720 progressively displayed
pixel rows on the screen. This means that all 720 pixel rows are displayed at
all times. Although 720p is high-definition, it takes up less bandwidth than
1080i or 1080p.
8k Resolution 8K
resolution refers to an image with 7680 x 4320 pixels (or 4320p). It is
effectively sixteen times more detailed than the current 1080p resolution
standard. NHK's proposed Super Hi-Vision broadcast format follows this 8k
standard. In addition, Super Hi-Vision provides for up to 22.2 channels of
broadcast standard that provides 1080 lines of vertical resolution scanned in an
interlaced ("alternate field") manner, similar to a 480i image.
image, usually from a Blu-ray disc, consisting of 1080 vertical lines of
resolution scanned progressively.