Specifications

ptg
147
Adjusting Audio Gain Using Keyframes
TYPICAL SCE NAR IOS FOR ADJ USTI NG GAI N WITH KEYFRAM ES
Here are a few typical scenarios for adjusting the gain on a selected track or tracks.
Add a single keyframe to adjust gain evenly throughout a segment:
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Add a single keyframe in the segment, and then drag the keyframe up or down to increase or
decrease the gain within the entire segment. Adjusting the level using one keyframe has the
same result as adjusting the level for a segment in the Audio Mixer tool.
Add two keyframes to create a gradual increase or decrease (fading up or
down) within a segment:
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Add one keyframe at the start of the desired change in level and another at the
end, and then drag a keyframe up or down to increase or decrease the gain at
that point.
Add three keyframes to perform a quick drop in the audio level within
a segment:
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If you need to quickly lower the audio level for a frame or two—to mute a pop
or flaw in the audio, for example—create three keyframes around the flaw, and
then drag the middle keyframe all the way down.
Add four keyframes to adjust the gain within a region of
a segment:
1. Add four keyframes to the Timeline.
2. Add an IN mark between keyframes 1 and 2 and an OUT mark
between keyframes 3 and 4.
3. Drag keyframe 2 or 3 up or down. Notice that the keyframes outside
the IN/OUT marks do not move.
This is a great way to ramp audio up or down over a defined area
when, for example, you want to reduce a music track level while
someone is speaking.
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