Visual Circuits ReelTime 2, User Manual

Page: 42 / 71

Troubleshooting Tips
34
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Unequal elementary streams/uneven video or audio tracks.
Cross channel synchronization requires equal playback
duration and similar timecode starting points of MPEG
files: For cross channel sync all MPEG files must have
equal playback duration. If in a synchronized group of
channels, files vary in length, the driver will attempt to
synchronize these unevenly matched files and cause
"stuttering". It is also recommended to encode files with
equal bit rates whenever possible and files lengths that are
exact. Also the starting point of each MPEG’s timecode
must be the same.
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Incorrect channel to drive mapping in multiple card systems
with multiple content drives. For more information see
“Multi-Card Servers” on page 23.
"Latent Images" or "Flashing" during
playback
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Incorrect source timecode provided or improperly closed
encoding session. If the incorrect timecode for a file on
tape is given, it is possible to encode a frame or two of
trailer or header information from the tape. Often this
"extra" frame may be seen only briefly and may appear as a
visual "flash" on the screen during looping playback.
Review the original source material and determine if the
timecodes are correct for the tape, or if the encoding session
was actually started and closed on the correct frames.
NOTE
Using the timecode provided on the original
source type may not provide the same
timecode starting point for each MPEG file.
Consult your encoding manufacturer's
documentation for information on providing
the same start point for each MPEG encoded.