Ulead MEDIASTUDIO PRO 7, User Manual

Page: 221 / 436

VIDEO EDITOR: CHAPTER FOUR 221
Notes:
• When you select a compression scheme, the Key frame for every spin box
changes to indicate the default number of key frames the scheme uses.
• Generally speaking, it is best to try out a variety of compression schemes and
options on a test version of the same file, then compare the resulting file sizes and
playback quality.
• For more information on audio, see the ‘Creating a new edit window’ section in the
Audio Editor chapter, page 346.
• If you select new attributes in the Audio Format dialog box and wish to save them
for later use, click the Save As button. The Save As dialog box opens allowing you
to assign a name to the attributes. Clicking OK saves the attributes and the
specified name appearing in the Name list.
4. Frame size determines the size of each video frame. You can choose from a
range of predefined sizes or define your own.
5. Display aspect ratio maintains the vertical and horizontal proportions of your
video. When cleared, you can independently resize the video to create non-
standard effects such as widescreen TV.
Note: The frame rate and frame size you choose should match the frame rate and
size of your captured video clips if you intend to output your video back to tape. You
can find this information by right-clicking a selected video clip on the Timeline and
selecting Properties from the pop-up menu.
AVI and MPEG formats are most commonly used in saving video files. For AVI
files, an AVI tab is available in the Video Save Options dialog box. Compression
type, data type, and audio formats can be set in this tab. If you have a target
playback device, the AVI tab also offers Advanced options for customizing
video file properties for specified processing speed and PC capabilities.
The Compression tab, which is available for the MPEG format, contains
options for media type, audio settings, and data rate.