The Source Monitor plays
back individual clips. In the Source Monitor you prepare clips that
you want to add to a sequence by specifying In and Out points and
the clip’s source tracks (audio or video). You can also insert clip
markers and add clips to a sequence in the Timeline panel.
The Program Monitor plays back the sequence of clips that you
are assembling. It’s your view of the active sequence in the Timeline
panel. You can set sequence markers and specify a sequence’s In
and Out points, which define where frames are to be added or removed
from the sequence.
Each monitor contains both a time ruler and controls to play
back and cue the current frame of a source clip or sequence.

Source Monitor (left) and Program Monitor (right)
You can reduce the resolution of the
Source or Program Monitors to decrease the processing demands on
your computer. Reducing the quality setting of the Program Monitor
may allow your system to create real‑time previews of parts of the
sequence that would otherwise require rendering.
In the Source or Program Monitor panel menu, choose
a quality setting: - Highest Quality
-
Displays video in the monitor at full resolution.
- Draft Quality
-
Displays video in the monitor at one‑half resolution.
- Automatic Quality
-
Measures playback performance and dynamically adjusts quality.
Note: All
quality settings use a bilinear pixel resampling method to resize
the video image. For exporting a sequence, a cubic resampling method
(which is superior to bilinear) is used.
The Source and Program Monitors scale
video to fit into the available area. You can change the magnification
setting for each view to see the video in more detail, or to increase
the size of the pasteboard area around the image (to adjust motion
effects more easily, for example).
- Choose a magnification setting from the View Zoom
Level menu (to the right of the current time display) in the Source
or Program Monitor.
In the Source Monitor, percentage values refer to the size
of the source media. In the Program Monitor, percentage values refer
to the image size specified by the project settings. Fit scales
the video to fit in the monitor’s available viewing area.
- To change the visible area of a monitor, use the monitor’s
scroll bars to change the visible area of the video image. Scroll
bars appear when the current size of the monitor can’t contain the
entire image.