Windows Video Capture Application
Vertical shift
Configure vertical shift to offset the captured image
position. For example, a captured image shifted slightly
downward (vertically) can be corrected with minor
adjustments to the vertical shift settings.
Increasing or decreasing the value entered in the
Vertical Shift field shifts the image up or down.
Set offset/gain
(brightness/contrast)
The offset and gain settings control the image
brightness and contrast respectively. Increasing the
offset control causes the image to become darker.
Increasing the Gain control gives the image more
contrast.
This option is available when a VGA source is
connected to the input port.
Sampling phase
This setting adjusts the vertical synchronization
properties of the image. You may need to change it
when there is a repetitive distortion or blurriness on the
horizontal axis of the image. Adjust the setting in small
steps until a sharper image is displayed.
This option is available when a VGA source is
connected to the input port.
PLL adjustment
This setting is used to squeeze or stretch the image
horizontally.
This option is available when a VGA source is
connected to the input port.
Prefer wide VGA mode
This checkbox, when enabled, allows Wide Aspect Ratio
VGA modes to be displayed by the capture tool window.
The Epiphan USB device driver may not be able to
determine whether the video source is sending a wide
video mode signal. Select this option when your video
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DVI2PCIe Duo User Guide
