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Using Apple Motion audio Parameter Behaviors

Check out this Apple Motion tutorial on how to create an audio driven animation.  This is a fantastic way to add audio interaction to particles, emitters, or waveforms based on beat detection within your audio file.

Continue reading for the full text transcript that goes along with this Motion tutorial...
With Apple Motion you can use an audio parameter behavior to generate an audio driven animation. Here's a quick tutorial on how to do this. To get started press command 4 and command 7 to activate the layers tab and the timeline windows. Navigate to the file browser tab. Locate an audio file that you'd like to use for the animation behavior. Drag the audio clip into the canvas window. The will create and audio layer directly underneath the canvas window. To get started, you can use one of the pre-built particle emitters to interact with your audio file. Let's use the analog modular emitter from the particle emitters library. Drag the emitter into the canvas window. Depending on your video format, scale the emitter so it fills the visible picture area. Twirl down the disclosure triangle for the analog modular emitter within the layers tab. The basic components of this particular emitter contains these two shapes. Click on the top shape. Click on the inspector tab within the inspector window. Make sure the particle cell tab is selected. Look for the scale parameter. Drag the value to 0. Click on the add behavior button to select the audio parameter behavior. Notice how this behavior has been applied to the top shape within the analog modulator emitter. Within the behaviors tab select an audio source file. Apply the audio source file to the scale parameters for the object that you've selected. Navigate to to this pull down menu that tells motion how to respond in regards to the interaction with the emitter. In this case, re-select the amplitude. That's it, now the emitter interacts with the audio based on the scale parameter for your object. If the scaling is too large for your liking, you can adjust the scale parameter for the audio behavior. You can then export this composite into Final Cut Pro to interact with your video project. Go ahead and check out this example. For other great tips and tricks like these, or to enroll in a Apple training course, visit GeniusDV.com

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