Audio, Average – Apple Motion 4 User Manual
Page 461
Audio
This behavior allows you to animate nearly any parameter based on properties of an
audio file, such as bass frequency. For example, the Audio parameter behavior can be
applied to the Scale parameter of an object so that it scales up and down based on the
amplitude of the bass, or to the Opacity parameter so that it fades in and out to the beat.
For more information on using the Audio parameter behavior, see
.
Average
This behavior smoothes the transition from one value to another caused by keyframes
and behaviors that are applied to a parameter. Use the Average behavior to smooth out
animated effects. Averaged motion moves more fluidly, while averaged changes to
parameters such as Opacity and to filter parameters appear to happen more gradually.
Use the Window Size parameter to adjust the amount by which to smooth the affected
parameter.
Tip: The Average behavior can be used to smooth out the sequence of values generated
by a Randomize behavior.
Parameters in the Inspector
Window Size:
A slider lets you adjust the amount of smoothing to apply to the affected
parameter by specifying the number of adjacent frames to average together. Higher
values apply more smoothing by averaging a wider range of values, resulting in more
fluid animation. Lower values average a narrower range of values and apply less smoothing
with values that are closer to the original.
Apply To:
The Apply To (Go) pop-up menu shows the parameter being affected and can
be used to reassign the behavior to another parameter.
HUD Controls
The HUD lets you adjust the Window Size parameter and change the parameter
assignment.
Related Behaviors
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Chapter 9
Using Behaviors