Ulead MEDIASTUDIO PRO 7, Руководство пользователя

Страница: 90 / 436

MEDIASTUDIO PRO USER GUIDE 90
guideline, 15 frames per second for NTSC devices is a good place to
start and 12 frames per second for PAL devices. If your video has a lot
of movement and panning, then you may need a higher frame rate to
avoid any jerkiness.‘Talking head’ shots and video with little movement
can often get away with a much lower frame rate.
4.
Select the Exactly match the specified frame rate option to ensure
that the capture maintains the frame rate (essential if you are capturing
drop-frame video). Leave this option clear for general or non-time
critical captures.
The actual captured frame rate may differ from the specified frame rate
due to rounding or synchronization errors. While this is not detrimental
in most cases, you may find that it slightly affects the timing of larger
video sequences.
5.
In the Capture Method group box, select the appropriate method for
capturing. Auto captures video according to the time specified in the
Auto spin box while Auto with no time limit continues capturing until
you press the [
ESC
] key. If you want to perform single frame captures,
then select the Manual option. If you have a controllable device, select
the Device control option. (For more on capturing with a controllable
device, see page 95)
If you select the Manual option, you can define aspects of the capture
by clicking on the Settings button. This opens the Manual Capture
Settings dialog box from which you can choose between two capturing
modes: Auto and Manual. Auto allows you to specify the duration
between captures while Manual allows you to control the timing of the
capture directly. If you select the Auto option, the Duration group box
is enabled with further options for defining how many frames are to be
captured in total. If you want to capture continually, select the No limit
option.
Manual Capture Settings dialog box