SoundTrack Pro: June 2010 Archives
Keyframes are not referred to as keyframes in Soundtrack Pro, they are known as Envelope points. Envelope points have the ability to be positioned much more precise than keyframes. In Final Cut Pro for example, a frame is typically a 30th of a second, and I think we all known that a 30th of a second can be an eternity with audio.
To apply an envelope point, you must first open the envelopes associated with a particular track. To do this you click the disclosure triangle in the upper left corner. Once the envelopes are open you simply double click at the position that you desire an envelope point. To adjust the value you can either drag it manually, right click on the point and choose Set Value, or go to the Details tab in the Left Pane and input the value. Right clicking on a point, or working in the Details tab will also allow you to copy the value from either the previous or next point to the selected point.
To remove a point, first select the point by clicking on it, and then hit the delete key.