User guide

Chapter 4, Configuring Matrox Convert DVI

$ Select Underscan mode to output the full video frame, which includes

the edges of your video that may be visible only on production monitors.

Clearing this option displays only the safe area of a video frame that is

visible on all standard televisions and monitors.

5 If you are downscaling 16:9 material to 4:3, from the 16:9 to 4:3

Conversion

list, select one of the following options to indicate how you

want your video to be output:

$ Center cut Outputs the widescreen picture by evenly cropping the left

and right edges of the picture for display on a standard 4:3 television

screen.

$ Letterbox Outputs the widescreen picture in letterbox mode by adding

black bars at the top and bottom of the picture for display on a standard

4:3 television screen.

$ Anamorphic Outputs the widescreen picture as horizontally

compressed 4:3 video, which retains the picture’s full vertical resolution

for display on a widescreen television. To display the video with the

correct proportions on an NTSC or PAL monitor, select the 16:9 display

setting on the monitor.

6 If you are outputting material that has a non-standard aspect ratio, from the

Custom Scaling list, select one of the following options to indicate how

you want your video to be output (picture can be downscaled only):

$ Scale to fit Scales the picture to fit the entire screen.

$ Maintain aspect ratio Displays the picture at its original aspect ratio,

and centers the picture on the screen.

7 From the Analog NTSC Setup list, select the setup level you want for your

NTSC analog video outputs:

$ 7.5 IRE Applies the standard NTSC setup level of 7.5 IRE.

$ 0 IRE Applies a setup level of 0 IRE. You should select this option only

when working with a commercial DV-1394 device that uses the Japanese

analog NTSC setup of 0 IRE. For example, if the video appears too bright

when you play back DV clips on your NTSC monitor, you can change the

setup to 0 IRE to output your DV clips at the correct brightness.

8 Under Audio Output, select Embed audio in SDI output if you want your

computer’s audio to be embedded in Convert DVI’s SDI output signal.

9 Click Apply for your settings to take effect.