Apple Motion 5.1.1 User Manual
Page 1027
Chapter 23
Audio
1027
Apply the Audio parameter behavior via the Add Behavior pop-up menu
1
In the Audio list or Media list of the Project pane, select the track.
2
In the toolbar, choose Parameter > Audio from the Add Behavior pop-up menu.
The Audio parameter behavior is added to the project. However, no Source Audio is yet applied.
3
Do one of the following:
•
In the Behaviors Inspector, click the To pop-up menu (in the Source Audio row) and choose a
source audio track.
•
Drag the audio clip (or video clip with audio) from the Media list (in the Project pane) to the
Source Audio well in the Behaviors Inspector.
Apply the Audio parameter behavior via the shortcut menu
1
In the Audio list, select the track.
2
In the Audio Track Inspector, control-click an audio parameter (such as Level), then choose Audio
from the Add Parameter Behavior submenu of the shortcut menu.
The Audio parameter behavior is added to the project. However, no Source Audio is yet applied.
3
Do one of the following:
•
In the Behaviors Inspector, click the To pop-up menu (in the Source Audio row) and choose a
source audio track.
•
Drag the audio clip (or video clip with audio) from the Media list (in the Project pane) to the
Source Audio well in the Behaviors Inspector.
For more information on applying Parameter behaviors, see
page 299.
Audio parameter behavior controls
The Audio parameter behavior performs an analysis of a specific property of an audio track, then
applies an animation curve to a parameter based on that analysis.
Parameters in the Inspector
•
Source Audio: A source well that sets the audio track from which to read audio data. Drag an
audio clip or a video clip with audio into the Source Audio well, or use the pop-up menu to
choose a source for audio analysis.
Note: For the Audio parameter behavior to have an effect on an object, audio must be present
in the Audio Timeline at the position of the behavior.
•
Respond To: A pop-up menu that sets the type of audio data analysis to perform. Choose
Amplitude or Transients. If set to Amplitude, the behavior responds to peak values of a
particular frequency. If set to Transients, the behavior responds to rapid changes in frequency.
•
Graph Range: A pop-up menu that sets the initial range of frequency values to be analyzed by
the behavior. There are four options: All Frequencies, Bass, Mid, or Treble. The choice of display
affects the frequency range of the Low Frequency and High Frequency parameters below.
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