User guide

SYNCHRONIZATION
61
The solution to this problem is to use your Express
interface to regenerate fresh time code that matches the
original time code while you are copying the tape. Some
people refer to this process as jam syncing. When your
Express interface receives a time code signal on its SMPTE
IN cable, it always regenerates a fresh signal that exactly
matches the incoming signal and sends it out the SMPTE
OUT cable (except for drop-outs, which it eliminates with
freewheeling).
To regenerate time code:
1 Connect the original time code track to the SMPTE IN
on your Express interface, and connect the SMPTE OUT
from your Express interface to the destination time code
track (which could even be on a different tape deck).
2 Set the freewheel option in the Sync/MMC window to a
high enough number of frames to cover any drop outs that
may exist in the current time code.
Try setting it to between 2 and 8 frames, unless there is an
obviously large dropout. If so, set it more than 8 frames.
This ensures that drop-outs in the old code are not
reproduced in the fresh code.
3 Roll tape and set the time code volume levels.
When your Express interface is reading the old time code,
it generates fresh time code via its SMPTE OUT jack only
when it is in LTC mode; it won’t regenerate LTC in LT C
QuikLock mode.
4 When the levels are set, roll tape and convert as normal.
MIDI Express XT or micro express
Fresh SMPTE
Time code
Original
SMPTE Time
code
!USB Interfaces Manual Book Page 61 Tuesday, August 16, 2011 11:21 AM