Use media mixes to control how videos and images on both tracks interact with one another. Flip smoothly between the tracks or show both tracks at the same time with a picture-in-picture mode. Let’s pick up where we left off in the previous activity (see above).
To mix videos and images effectively, you need to have them on both tracks in the timeline. Let’s drag the Video.mp4 object down to the beginning of track B so it’s beneath the title-screen image.
Then move the screencast/webcam object to the left until a diagonal line appears between it and the Video.mp4 object.
Now we’re ready to add mixes. Mixes always get added at the point on the timeline where the playhead is currently located. Move the playhead to the beginning of the timeline, then click the A+B mix button. This makes track A fill the canvas (in this case, the title-screen image) and track B appears in the corner of the stage.
Click the A+B mix that you just added in the timeline to select it. (It’ll be light blue when it’s selected.) Then select one of the picture-in-picture quadrants to control where track B appears on the canvas. Fun, right?
Now move the playhead to the end of the title-screen image and click the B mix button. This fills the stage with the Video.mp4 object when the title screen disappears.
Let’s add one more mix. Move the playhead to the beginning of the desktop-screencast object and click the A+B mix button.
There’s probably an A mix at the end of the timeline in the sample project we’ve been using in this activity. It might work well in this case, but if you don’t want it, just right-click it and choose Delete selected items.
Preview your project to see how it looks with the media mixes you added. Move the playhead to the beginning of the timeline and click the play/pause button above the timeline. If you want to tweak the timings of your mixes, just drag the diagonal lines between mixes. So easy!