Time-remap audio pitch, Change the pitch of an audio layer – Adobe After Effects CS4 User Manual
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USING AFTER EFFECTS CS4
Animation and keyframes
Last updated 12/21/2009
Drag the remap-time marker to replace the frame at the current time marker.
5
Move the current-time indicator on the lower time ruler to the last frame where you want change to occur.
6
Move the remap-time marker on the upper time ruler to the frame you want to display at the time indicated on the
lower time ruler:
•
To move the preceding portion of the layer forward, set the remap-time marker to a later time than the current-
time indicator.
•
To move the preceding portion of the layer backward, set the remap-time marker to an earlier time than the
current-time indicator.
•
To freeze a frame, set the remap-time marker to the frame you want frozen. Then, move the current-time indicator
(lower ruler) to the last point in time where the frame will appear frozen and move the remap-time marker again
to the frame you want frozen.
Time-remap audio pitch
The speed graph of the Time Remap property directly relates to the pitch of an audio file. By making subtle changes to
the speed graph, you can create a variety of interesting effects. To avoid screeching audio, you may want to keep the
Speed value below 200%. When the speed is too high, use the Levels controls, located under the Audio property, to
control the volume.
You may hear clicks at the beginning and end of an audio (or an audio and video) layer after setting new In and Out
points in the Time Remap graph. Use the Levels controls to remove these clicks.
More Help topics
Change the pitch of an audio layer
1
In a Composition or Timeline panel, select the layer you want to remap.
2
Choose Layer
> Time > Enable Time Remapping.
3
Click the Graph Editor button in the Timeline panel to display the Graph Editor, if necessary.
4
Click the Choose Graph Type And Options button at the bottom of the Graph Editor and choose Edit Speed Graph.
5
Move the current-time indicator to the frame where you want change to begin, and then click the Add A Keyframe
button.
6
On the speed graph below the keyframe, drag a marker, watching the Speed value as you drag.
•
To lower the pitch, drag the speed graph marker down.