Adobe AFTER EFFECTS CS3 PROFESSIONAL User Manual page 133

B C
A
Audio panel
A. VU meter B. Level controls C. Level units D. Audio panel menu E. Level values
Choose Options on the Audio panel menu to specify the following options:
Choose whether to display audio levels in decibels or in percentages. 100% equals 0 decibels (0 dB).
Units
The minimum audio level to display in the Audio panel.
Slider Minimum
Move the current-time indicator
The most basic way of previewing frames is to manually preview by moving or dragging the current-time indicator.
The time ruler visually represents the time dimension of a composition, a layer, or a footage item. In a Layer or
Footage panel, the time ruler appears near the bottom of the panel. For a Composition panel, the time ruler appears
in the corresponding Timeline panel. The time rulers in different panels represent different durations. The time ruler
in a Layer or Footage panel represents the duration of the contents of that panel; the time ruler in the Timeline panel
represents the duration of the entire composition.
On a time ruler, the current-time indicator indicates the frame you are viewing or editing.
Current-time indicator in the time ruler in the Timeline panel (left) and in the Layer panel (right)
• To go forward or backward one frame, click the Next Frame
panel, or press Page Down or Page Up.
• To go forward or backward ten frames, Shift-click the Next Frame or Previous Frame button, or press Shift+Page
Down or Shift+Page Up.
• To go forward a specific period of time or number of frames, click the current-time display, and then enter the
plus sign (+) followed by the timecode or number of frames to advance. For example, enter +20 to go forward 20
frames or 1:00 to go forward one second. Precede the value by the minus sign (-) to go backward. For example,
enter +-20 to go backward 20 frames or +-1:00 to go backward one second.
• To go to the first or last frame, click the First Frame
press Home or End.
• To go to the first or last frame of the work area, press Shift+Home or Shift+End.
D
E
or Last Frame
or Previous Frame button in the Time Controls
button in the Time Controls panel, or
AFTER EFFECTS CS3 127
User Guide