Specifications

Chapter 19: Playing Back Track Material 421
Continuous Scrolling During Playback uses host
processing power, so use this option with host-
based Pro Tools systems only when absolutely
necessary.
Center Playhead Scrolling
(Pro Tools HD Only)
When this scrolling option is selected, the Edit
window’s contents scroll continuously past the
Playhead, which is a blue line in the center of the
window (or a red line when recording).
The Playhead indicates where playback begins
when clicking Play in the Transport window.
To move the Playhead to a particular location for
playback, you can scroll there in a ruler (see
“Scrolling in a Timebase Ruler” on page 579), use
the Edit window’s horizontal scroll bar, or type the
location into one of the Edit Selection indicators or
one of the Counters.
Moving the Playhead with these methods does not
update the Timeline selection. However,
updating the Timeline selection automatically
moves the Playhead to the Timeline insertion
point.
With the Playhead enabled, you can jump to and
play an Edit or Timeline selection. For details, see
“Playing Timeline and Edit Selections with the
Playhead” on page 423.
Half-Screen Edit Window
When the Scrolling option is set to Continuous or
Center Playhead
, a half-screen appears at the far
left of the Edit window (before the beginning of
the session) when the Playhead is at the beginning
of the session.
Playing Selections
Once an Edit selection is made, you can audition it
by clicking Play in the Transport window. If en-
abled, the pre- and post-roll amounts play as well.
To play a selection:
1 Select Options > Link Timeline and Edit
Selection
.
2 With the Selector or Time Grabber tool, make a
track selection.
3 If you want to use pre-roll or post-roll, enable
and set the pre-roll and post-roll amounts. For
details, see “Setting Pre- and Post-Roll” on
page 464.
Center Playhead Scrolling option
Center Playhead Scrolling and Dynamic
Transport mode cannot be used at the same
time. Selecting Center Playhead Scrolling
disables Dynamic Transport mode (if it is en-
abled). Likewise, enabling Dynamic Trans-
port mode when Center Playhead Scrolling is
selected automatically changes the Scrolling
option to No Scrolling.
Half-screen for Center Playhead Scrolling option