Adjusting Audio Filter Parameter Keyframes
You can add keyframes to audio filter parameters using the Selection and Pen tools,
just as you would for video filters.
To set a keyframe while playback is paused, do one of the following:
m
Move the playhead in the keyframe graph area of the Viewer Filters tab to the time
where you want to put a keyframe, then click the keyframe button for the parameter
you want to set.
Keyframe graph
area
Section of clip
currently used
Keyframe navigation
buttons
Name bar
Keyframe
button
Enable/Disable checkbox
Keyframe graph ruler
Keyframe graph line
Click here to create a
keyframe for that
parameter.
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With the Option key held down, position the pointer over the keyframe graph line for a
parameter. When the pointer turns into a Pen tool, click to add a keyframe to the
keyframe graph line at that point.
The keyframe appears as a small diamond on top of the keyframe graph line.
To set additional keyframes for a parameter while playback is paused:
1
Move the playhead to another point in the Filters tab’s keyframe graph area where you
want to set a keyframe.
2
Do one of the following:
 Drag the parameter slider to set a new keyframe with that value.
 Type a number into the appropriate field to set a new keyframe at that value.
 Click the appropriate keyframe button to add a keyframe to the keyframe graph line
of that parameter at the keyframe graph line’s current value.
 With the Option key held down, click anywhere on a parameter’s keyframe graph line
with the Pen tool to add a keyframe at that point without changing the value of the
keyframe graph line at that point. You can add as many keyframes as you want by
clicking repeatedly with the Option key held down.
The new keyframe appears as a small diamond on top of the keyframe graph line.
To record keyframes for a parameter during playback:
1
In the Viewer or Timeline, move the playhead to the area of your sequence where you
want to record keyframes.
It’s a good idea to start a few seconds before the section you’ll actually be mixing, to
give yourself time to get ready.
Note: You can only record keyframes in an audio filter parameter during playback if the
Record Audio Keyframes button is selected in the Audio Mixer.
2
Begin playback of your sequence.
3
As your sequence plays, position the pointer over the relevant audio filter control in the
Filters tab of the Viewer, and press the mouse button to begin adjusting that parameter.
The Pen tool lets you
add a keyframe.
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4
When you’ve finished making a particular adjustment, release the mouse button to
insert an additional keyframe at the position of the playhead.
The sequence continues to play.
5
If there are any other audio filter parameters you want to adjust at this time, repeat
steps 1 through 4.
6
When you’ve finished making adjustments, stop playback.
To move the playhead in the Viewer from one keyframe to another, do one
of the following:
m
Click the left or right keyframe navigation button for a parameter to move the playhead
to the next keyframe to the left or right of the current position of the playhead.
m
Press Option-K to move the playhead to the next keyframe to the left of the playhead.
m
Press Shift-K to move the playhead to the next keyframe to the right of the playhead.
To adjust the value of a single keyframe, do one of the following:
m
Move the playhead to the keyframe you want to adjust, then adjust the appropriate
parameter control to set a new value.
m
Move the playhead to the keyframe you want to adjust, type a new value in the
appropriate field, and press the Return key.
m
Move the pointer over the keyframe you want to modify. When the pointer becomes a
crosshair pointer, drag the keyframe up or down to change its level, or left or right to
change its location.
To adjust a section of a keyframe graph line in the middle of four keyframes:
m
Move the pointer over this section of the keyframe graph line. When the pointer turns
into the Adjust Line Segment pointer, drag just that area up or down to modify it.
The rest of the keyframe graph line before and after the four keyframes remains untouched.
To move a keyframe forward or backward in time:
m
Move the pointer over the keyframe you want to move. When the pointer becomes a
crosshair pointer, drag the keyframe forward or backward along the keyframe graph line.
As you drag, a box displays the timecode duration of the change you’re making.
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To delete a keyframe, do one of the following:
m
Move the playhead to the keyframe you want to delete, then click that parameter’s
keyframe button to remove the keyframe.
m
Move the pointer over the keyframe you want to delete. When the pointer becomes a
crosshair pointer, drag the keyframe up or down out of the keyframe graph area. When
the pointer turns into a small trash can, release the mouse button.
m
Control-click the keyframe you want to delete, then choose Clear from the shortcut menu.
m
Hold down the Option key and move the pointer over an existing keyframe. When the
pointer changes to the Delete Point tool, click an existing keyframe with the Delete
Point tool to delete that keyframe.
To delete all keyframes:
m
Click the filter’s Reset button to clear all keyframes from all parameters for that filter
and restore the parameters to the default values.
Trash can icon
Reset button
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