Rollback Points - Solid State Logic SL 9000 J Series Operator's Manual

The Mix System

Rollback Points

Rollback points have an important role to play in the J Series automation system. If
you have read through the section on Automation Modes (Page 5-15), you will know
that a number of different things may happen at the rollback point, depending on
which status and automation mode is currently selected for any automated control.
A rollback point is created, for any object in write, by using any method that moves
the system backward by more than a frame. This can include the TC1-5 locate buttons,
the Rewind key, the Jog Wheel or even Rewind on an external tape machine remote.
Unless no new mix data has been written, the action of rolling back will create a mix
pass saved in RAM and the mix To : time will be updated. If you rewind before the
current Fr : time and start writing new mix data, the next time you roll back, the Fr :
time will be updated.
Rollback points are created whatever Automation Mode is in use, and each mix pass
has its own set of rollback points. Each automated object can have one rollback point
associated with it, ie. the point at which the system was rolled back with that object in
write. As you mix, be aware that rollback points may be created at different times for
different objects. If you Discard the current mix pass, or Revert to a different pass, the
system will reinstate the rollback points from whichever pass you then choose to
update.
If you change to a different Automation Mode, the rollback points for the current pass
will still be in place. This is particularly relevant if you have made your first pass in
Overwrite or Static (creating a number of different rollback points) and then switch to
Rollback/Join.
Rollback points will be cancelled if you:
• Play through a rollback point
• Switch back into write before the rollback point
• Save a mix pass to disk
All of the above may seem unnecessarily complicated to you. Rest assured that
rollback points are far more transparent when you are actually mixing!
See also the JOIN button on Page 5-19. Rollback points for faders faders are indicated
on the Overview display (see Page 5-21).
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