You simply keyframe the audio levels.
You can download my free "Basic Keyframing" tutorial on this page.
How you keyframe audio depends on which version of the program you're using.
In Steves books, you can also look for Audio Mixer.
Thanks for sharing the tutorial. It was really helpful. I figured out how to make a keyframe around one segment, but I was wondering if there's a quick way to mute multiple (up to 40) nearly identical segments (each containing just one or two words)? Is there a way to duplicate keyframes? Thank you!
For most Effects, one CAN Copy them, and then Paste them into other Clips, and the Fixed Effect>Volume is one.
However, as Keyframes are time related, when a "source" Clip differs in Duration from the "destination" Clip(s), more handwork is usually required to adjust those Pasted Keyframes.
The process for the Copy/Paste is, as follows:
- Make adjustments to the first Clip, as required.
- Rt-click on that Clip, and choose Copy.
- Select all other "destination" Clips, Rt-click on them, and choose Paste Attributes.
Just remember that Duration differences will require manual adjustment to the Pasted Keyframes.
Steve mentioned using the Audio Mixer, in his reply above. Given what you have, it might be the best course of action here. Now, Audio Mixer places Keyframes too, but with one big difference: rather than attaching those Keyframes to a Clip, or Clips, they are placed onto the Audio Track. If you later move Clips around, Delete them, add any, the Keyframes remain, just as they were placed, and the actual Clip has no bearing on them at all. Before you use the Audio Mixer to add Track Keyframes, it is much better to have ALL Audio editing done first.