Pinnacle Systems miroVIDEO DC30 Series, Руководство пользователя

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miroVIDEO DC30 Series User´s Guide
Using the DC30 Board Under
Windows 95 / Windows 98
This chapter provides an introduction into working with the miroVIDEO DC30
series. You can find additional information about working with the
miroVIDEO DC30 series in the “Tips & tricks” section (page 126).
Important: If you use Windows NT, skip this chapter and see “Using the DC30
Board Under Windows NT” on page 65.
You can adjust the recording quality to your hard disk’s speed by changing the
data rate or the compression factor.
If the hard disk is too slow to write all the images, some will of them will be
dropped (not recorded), and the video playback will look jerky and stuttering.
Solution: Select a lower data rate.
If your system contains a graphics board that supports DirectDraw, the
miroVIDEO DC30 series board can add a real-time overlay. Check whether
displaying an overlay while simultaneously recording weakens the recording.
This may be due to a lower transfer rate on the part of the graphics board. In
this case, either reduce the overlay resolution or simply turn off the overlay
function while recording.
You should always use your television to control the video colors. Because of
gamma values, phosphors, etc., that differ from those of a TV, the computer
monitor may not show the correct colors.
Recording
quality
Overlay