EPESP0909 User's Guide

AV.io HD User Guide Resolutions, capture rates and aspect ratios
Resolutions, capture rates and aspect ratios
The resolution (also known as frame size or display mode) of a video signal,digital image, TV screen,
computer monitor or other display device is a count of the number of pixels displayed horizontally and
vertically. For example the resolution 1920×1080 (which is 1080p) creates an image that is 1920 pixels wide
and 1080 pixels tall.
The aspect ratio of an image describes the proportional relationship between its pixel width and height. The
resolution 1920×1080 (1080p) is quite a bit wider than it is tall. The ratio of its width to height is 16 to 9,
represented as an aspect ratio 16:9.
AV.io HD outputs resolutions in commonly supported aspects ratios. The table below is a color-coded legend
for interpreting the table of product resolutions below it:
Aspect Ratio Common Use
4:3
Standard TV (NTSC/PAL) display and non-widescreen computer displays
16:9
Widescreen (HD) TV displays (1080p, 1080i, 720p etc)
16:10 (8:5)
Widescreen computer displays
5:4
Sometimes used in larger format computer monitors
AV.io HD generates a list of the following possible resolutions for your capture application to select for output
display:
640×360 848×480 1024×768 1280×1024 1920×1080
640×480 960×540 1280×720 1600×1200 1920×1200
Captured video content is output to your applicationat 15, 30 or 60 frames per second (your application
chooses one of these frame rates) when captured over USB 3.0.
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