A step-by-step video tutorial explaining keyframes and how to use them to adjust audio in Final Cut Pro X.
Here’s a technique you can use to create multiple keyframes in multiple clips at the same time with a single mouse click. Then, I’ll show you how to get more control over the keyframes you set.
This is a quick simple technique to automatically create keyframes for an audio filter. Basically, audio key-framing in real-time.
Audio in FCP is clip-based, rather than track-based. This article describes a variety of ways to change the levels of more than one clip at once.