ClearOne magicbox aavelin, Руководство пользователя

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Aavelin User Manual 51
The Safe Text Area Guides
Notice the rectangle inside the page editor near the border of the
window. This rectangle represents what is called the “Safe Text Area”,
or sometimes the “Safe Title Area.”
Computer monitors and television screens are somewhat different in
how they display images. A computer monitor shows you the entire
image, usually surrounded by a thin black border. On a television
screen, however, the image is stretched slightly so that it goes past the
plastic bezel of the picture tube, creating the appearance of a picture
that goes from edge to edge without any border. This process is
known as “Overscan”.
The problem with overscan is that no two TVs are adjusted the same,
and will “waste” varying amounts of display area. This means that any
text you have near the edge of a display, although it may look OK on
your TV, might get chopped off on a different one.
This problem has led video professionals to define what is known as
the “Safe Text Area”. Text placed inside this area will show up for sure
on any TV that isn’t severely out of alignment. In Aavelin Composer,
this area is represented by the thin rectangle.
Backgrounds
A page background is an image or color pattern applied to the entire page
area. The background is always behind everything else and is not
considered an object, so it will not appear in the object selection toolbar.
Images set as page backgrounds will by default be stretched or shrunk
down to fill the entire page area.
Double-click on a blank area on the
page The Page Properties dialog will
open. Click on the
Background
tab.
Select a
background type
using the
pull-down menu. Select from
Solid
color,
Image File
, or one of many
different ramp options (a fade from
one color to another).
Horizon, Vertical/Horizontal splits, and
Left Third are ramps with slightly more
complex patterns.
Depending on the background type selected, some or all of the
Color 1
through
Color 4
buttons will be enabled (
Solid
uses Color 1 only, most
ramps use 1 and 2, the more complex patterns use all 4).