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Troubleshooting SMPTE/MTC Sync
The most common problems with SMPTE/MTC Sync, and ways to correct or avoid
them, are shown in the following table:
Problem… What to do…
The tape is striped incorrectly Check the tape stripe using your time code
generator and, if necessary, restripe the
tape.
The MIDI interface isn’t producing
MIDI Time Code
Use utility programs that come with your
MIDI interface to make sure that the time
code stripe is being received (sometimes
you must enable a Time Code Sync option).
Check the MIDI interface settings to make
sure that MIDI Time Code is being
generated.
The frame rate is set incorrectly The frame rate on the stripe must match the
frame rate you set in SONAR.
The offset is set incorrectly The offset you enter in SONAR must match
the start time of recorded material on the
tape.
SONAR is not configured correctly Verify and/or repeat the steps in “To
Configure SONAR to Sync to SMPTE/MTC”
on page 611.
Audio playback drifts out of sync with
the tape
Enable the Full Chase Lock option, which
keeps audio from freewheeling.
SONAR continues playing for up to
one full second after the time code
stops
Some time code readers tolerate dropouts
of up to one second, without affecting
playback. When you stop the tape deck, it
takes a full second for the reader to realize
that this isn’t merely a dropout and to signal
the end of the time code to SONAR. This
does not indicate any problem with time
code sync.
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