33
Multiple solutions
Playback appears jerky (dropping frames)
Possible cause “High Quality Playback (slower)” option selected in render
quality settings
If you’ve selected
High Quality Playback
(slower)
in your render quality settings, each frame will be rendered
as it’s played back, instead of playing back in real time. This causes
playback to appear jerky, with dropped frames.
Solution Check render quality settings
Choose
Sequence > Render
Quality > Edit Render Qualities
. In the
Render Quality Editor
,
clear the
High Quality Playback (slower)
option on all available
render quality setting tabs.
Loss of frame accuracy when capturing from an analog
source with device control
Possible cause Analog source not genlocked to Matrox RTMac analog
output
If your analog deck isn’t genlocked to RTMac’s analog
output, capture can be off by a few frames.
Solution Genlock analog source to RTMac output
Connect the
REF IN
of your analog source device to the
VIDEO OUT
or
S-VIDEO OUT
of
the RTMac breakout box. This will ensure capture accuracy to a
single frame.
Audio input levels too high when using an XLR source
device
Possible cause Wrong XLR-to-RCA converters
Because the RTMac breakout box
has line-level (RCA) audio inputs, connecting an XLR device to the
inputs without the correct XLR-to-RCA converters results in input
levels that are too high (“hot”).
Solution Use correct XLR-to-RCA converters
Use XLR-to-RCA
converters that attenuate the audio signal.
Summary of Contents for RTMac
Page 10: ...viii Contents Your notes...
Page 36: ...26 Chapter 4 Using Matrox RTMac with Final Cut Pro Your notes...
Page 38: ...28 Chapter 5 Using Matrox RTMac with Adobe After Effects and Discreet combustion Your notes...
Page 44: ...34 Chapter 6 Matrox RTMac Troubleshooting Your notes...
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