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When you’re creating your own graphics for use in a video, consider the following:
Have Visual Communicator scale down, not up
Make the resolution at least the size of the
published output (typically 640 x 480 pixels for local playback, and 320 x 240 for web
playback).
32-bit images are treated as titles
If you use a 32-bit PNG or TGA image, Visual
Communicator preserves the transparency and treats the image like a transparent title slate.
You can use video clips in your shows. These prerecorded clips are handled differently than
live video recorded within the program:
■
Video clips can be moved within the show, whereas live video is locked in the position
where it was recorded.
■
You can trim a video clip but not live video.
■
A video clip’s audio track stops playing when the show transitions to another tray, whereas
the live audio persists even when the live video is not being shown.
The following video formats are supported:
AVI (Audio Video Interleave)
A Microsoft file format for digital audio and video. This
format has several forms, depending on the codec (encoder/decoder) used to record or encode
it. If you encounter any problems with an AVI clip in Visual Communicator, check to see that
you have the necessary codec installed to play it back. Because the resolution of an image
deteriorates with each decompression/compression cycle, for the best results use
uncompressed AVI clips as inputs in your videos.
MPEG (Moving Pictures Experts Group)
A standard compressed format for audio and
video files.
MOV
A format created by Apple® but viewable through a QuickTime player on the
Windows platform as well.
Trim video clips from the Actions tab or in the Action window. You can trim video and audio
clips but not live video and audio.
As you trim a video clip, remember to leave enough time at the beginning for the Transition
In effect to finish, and enough time at the end so that good content finishes before the
Transition Out effect begins.
Содержание 38040165 - Visual Communicator - PC
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Страница 8: ...8 Contents Summary 138 Live streaming 139 Chapter 16 Shortcuts 149 Chapter 17 Glossary 153...
Страница 30: ...30 Feature and control overview...
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Страница 48: ...48 Creating a show...
Страница 56: ...56 Planning shows and writing scripts...
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Страница 122: ...122 Presenting live shows...
Страница 147: ...If your video is not streaming check the status of the Live Streaming Status light Status Light color Problem Solution...
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Страница 152: ...152 Shortcuts...
Страница 153: ...153 17 CHAPTER 17 Glossary...
Страница 154: ...154 Glossary...
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Страница 156: ...156 Glossary...