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Chapter 9 Using Audio Filters 169
I
Controls in the Filters Tab
To the right of each control is a set of keyframe controls. Like volume levels or stereo
pan, filters can be keyframed to change their effect on your clip over time.
For a detailed description of these controls, see “Viewing and Adjusting a Filter’s
Parameters” on page 192.
Adjusting Audio Filter Parameters
You can add keyframes to audio filter parameters using the Selection and Pen tools,
just as you would adjust video filters.
To set a keyframe while playback is paused, do one of the following:
m Move the playhead in the keyframe display area of the Viewer to the time where you
want to put a keyframe, and click the Keyframe button for the parameter you want to set.
m With the Option key held down, move the pointer over a parameter overlay. When the
pointer turns into a Pen tool, click the parameter overlay to add a keyframe to the
overlay at that point.
The keyframe appears as a small diamond on top of the overlay.
Keyframe
display area
Section of clip
currently used
Keyframe navigation
buttons
Name bar
Keyframe
button
Enable checkbox
Click here to create a
keyframe for that
parameter.
The Pen tool lets you
add a keyframe.