Grass-valley ProCoder 3 Bedienungsanleitung Seite 111

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ProCoder 3
Using ProCoder Helpful Hints
ProCoder
Reference
Glossary Index
111
Improving your Video
Cause: Video bitrate too low or not enough keyframes
If the break-up only appears after scene changes, then the video bitrate is too low
to handle the large change in the video. Increase the video bitrate to allow faster
recomposition. Alternatively, if the target format supports keyframing, decrease the
keyframe interval, thus increasing the number of keyframes. Keyframes provide a full
video frame so large changes can be tracked and better compensated for.
Cause: Video bitrate too high
When using a hardware decoder, such as for MPEG playback, in some cases a video
bitrate that is too high can cause the to image break up. If the video bitrate is at or
near the maximum setting, try reducing it a bit. If it plays on a software-based player
but not on a hardware-based player, this may also be because the bitrate is too high.
Video appears fuzzy or blurry
> Result > Original image
The video appears fuzzy or blurry. When played zoomed, it appears blocky, almost like
viewing something through a frosted glass window.
Cause: DV playback not set to full quality
If the problem occurs only with Microsoft DV AVI files, the problem may be due to the
Digital Video decode setting being set to Low. When set to Low, DV files are decoded
in low resolution, regardless of what the resolution of the actual file is.
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