System information
3. 
Click the Capture Preferences button   in the Capture window to open the Capture Preferences 
dialog.
Vegas Prodoes not support analog video inputs for SDI cards. However, Vegas Pro does support 
component video output for external preview.
General tab
Item Description
Stop device on loss of 
focus
Stops the selected capture device when focus is switched away from 
the capture application.
Show video when 
device is stopped
Displays the current frame when the selected capture device is 
stopped.
Show video when 
device is fast-
forwarding and 
rewinding
Displays video in the capture preview window when you fast-forward 
or rewind the device.
Add new clips to project 
media
Select this check box if you want to add captured clips to the Project 
Media window when capturing is complete.
Simulate device pixel 
aspect ratio
Displays square pixels in the capture preview window even if the 
capture format is using nonsquare pixels.
Fail on dropped frames Select this check box if you want to stop capturing if a dropped 
frame is detected.
When capture fails, 
stop batch capture
Select this check box if you want to stop an SDI batch capture if a 
dropped frame is detected.
Enable HDV scene 
detection
Select this check box if you want to create multiple files if scene 
changes are detected. When the check box is cleared, HDV clips will 
be captured to a single file.
Preroll Type a value in the box to specify the number of seconds of preroll 
Video Capture should use for SDI batch capture. 
When you click Capture Clips  , on the Clip Log tab, Video 
Capture will seek to a point prior to your Timecode In setting 
determined by the number of seconds you enter in the Preroll box. 
Video Capture will begin playback at the preroll location, and switch 
to capture when it reaches the timecode you specified in the 
Timecode In box.
Notes:
n  Batch capture will fail if there is not enough lead-in time. 
The deck must be able to find the timecode that equals 
the Timecode In value minus the Preroll value.
n  VITC and HANC timecode sources require less preroll 
than RS-422, as RS-422 needs time to synchronize 
timecodes with video frames.
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