Lance TDC-100 Installation And Operation Manual - page 19
19
Using Multipoint Loops
Version 3.0 software has the capability to do multi-point loops, where for example
you play a lead-in, loop an internal portion, then (upon receipt of a ‘exit loop’ trigger)
play a tail out. Doing this requires four time values.
Start Point --- Loop In --- Loop Out --- End Point
The way the controller accomplishes this is to use a pair of registers. The first
register must be in the range 000-099. This register contains the Start Point, and
the End Point (the two ‘outside’ times). The second register is in the range 100-
199. It contains the Loop In and Loop Out times (the two ‘inside’ times). You select
the lower register to run the loop. The controller will always look at that number +
100 for the two inside times, i.e., if the lower register is 025, the controller will look
at register 125 for the two inside times.
The inside loop must have a minimum duration of 1:15, just like a normal loop, and
must have both an inpoint and an outpoint. The Start Point must be at least as early
as the Loop In point. There are no requirements placed on the End Point. There
need not be a time in that register. If you do want to play a tail out (4-point loop) the
End Point must be later than the Loop Out.
Once the Start and Loop times are entered, you can start the Multi-point loop (or
MLoop, as it’s displayed on the TDC) by sending a Pbus Trigger 8, or by pressing
there already, and begin playing. When the disk gets to the Loop Out point, it will
jump back to the Loop In point (the inner loop). It will continue to run this loop until
you do any one of the following:
Stop the loop with a STOP trigger or button press
Recue the loop with a RECUE trigger or button press
Recall another register (with PRESERVE LOOP turned off)
Send a MULTI-LOOP EXIT Pbus Trigger (trigger 9), or press
If you send a MULTI-LOOP EXIT trigger, or press
the loop at the first opportunity, and play until it reaches the End Point. If there is no
End Point defined, it will play until stopped. Also, a GPI output will be triggered at
the time that the disk actually exits the loop. This GPI output may be used to trigger
a switcher effect timed to the tail out portion of the playback, if desired.
Multi-Point Loops do not automatically recue. To play the sequence again, you must
first issue a recue command, or recall the register again.
OPERATIONAL TIP: Setting up Multi-point loops requires entering times in two
registers, 0XX and 1XX. You can easily go between the two by pressing
then <+> to go up 100, and
to enter the three-digit register numbers repeatedly.