Operation Manual

Chapter 7: AVI Capture Options and Settings
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Tab
Description
Figure 57. AVI Input Sources
Video Settings
Control the capture properties for the selected video device (Figure 58):
 The Input field lists all input connectors available for capture device.
 Signal field lists various video standards the capture device supports.
 You can adjust capture properties such as proportion, video size,
and width/height using the provided fields.
 Use sliding bars to adjust additional capture properties of
brightness, contrast, saturation, and hue individually for each input.
 When making adjustments, verify adjustments apply to chosen
input.
 Otherwise, your adjustments apply to all the input sources listed.
 These capture properties remain available regardless of whether the
encoder starts or remains idle.
Figure 58. AVI Video Settings
Gamma Corrections
 Adjust the gamma of the incoming video.
 Gamma refers to the response curve of video cameras/CRTs.
 When you capture video with a camera, the camera response
remains deliberately nonlinear – it boosts low lumen values and
compresses high lumen values – based on two reasons:
(1) It increases the effective bandwidth in low lumen ranges, where
you need it, at the expense of high lumen ranges, where you need it
less.
(2) It matches the response characteristics of TV sets and monitors.
 The calibration specified in video standards matches the
requirements of cameras and TV sets in broadcast use.
— This usually, however, does not match the needs of computer-