Grass Valley Maestro Master Control v.2.4.0 - Manual (Page 303)

299 MAESTRO — User Manual
Section 6 — Visualization Tools
Enhanced Font Aspect Ratio
The Font horizontal scaling factor slider has been added to the Maestro
Content Definition Details dialog box (in the Maestro Configuration Editor
application) and the Font Builder tab (in the Maestro Visualization Tool).
This slider allows you to specify a horizontal scaling factor from 0.50 to 1.50
with a two decimal place precision.
Figure 188. Font Horizontal Scaling Factor Slider the Font Builder Tab
The 1.0 setting is the default value of the Horizontal Scaling factor. The
information listed in
Table 7 and Table 8 is provided to assist you in deter-
mining an appropriate Horizontal Scaling factor.
Table 7. Horizontal Scaling Factors for Standard “4:3”
Video
Standard
Resoluti
on
(W×H)
Display
Aspect
Ratio
(X:Y)
Pixel
Aspect
Ratio -
Standard
“4:3” (X:Y)
ITU-R
BT.601
Pixel
Aspect
Ratio -
Standard
“4:3”
(X:Y)
MPEG-4
Horizonta
l Scaling
Factor
“4:3”
Pixel
Aspect
Ratio -
Wide
screen
“16:9”
(X:Y)
ITU-R
BT.601
Pixel
Aspect
Ratio -
Wides
creen
“16:9”
(X:Y)
MPEG-
4
Horizont
al
Scaling
Factor
“16:9”
480I_5994 720×480 3:2 4320:4739 10:11 1.1 5760:4739 40:33 .83
576I_50 720×576 5:4 128:117 12:11 .92 512:351 16:11 .69
Table 8. Horizontal Scaling Factors for Widescreen “16:9”
Video
Standard
Resolution
(W×H)
Display
Aspect Ratio
(X:Y)
Pixel Aspect
Ratio -
Standard
“4:3” (X:Y)
Horizontal
Scaling Factor
“4:3”
Pixel
Aspect
Ratio -
Widescre
en “16:9”
(X:Y)
Horizontal
Scaling
Factor “16:9”
720_5994 1280x720 16x9 NA NA 1:1 1:0
720_50 1280x720 16x9 NA NA 1:1 1:0
1080I_5994 1920x1080 16x9 NA NA 1:1 1:0
1080I_50 1920x1080 16x9 NA NA 1:1 1:0
Font horizontal
scaling factor
slider