Step 2 - Finding out the action to create

The second ingredient that you need is the name of the system variable that you want to manipulate. Let's find it using the following steps:

  1. Use the Project | Variables menu item to open the Variables dialog.
  2. In the Type drop-down menu choose the System variables.
  3. In the View By drop-down menu, choose the Movie Control category.
  4. Select the cpCmndMute variable.

This is the system variable that you need to use to mute and unmute the audio. Take some time to read its description. Take good note of the fact that this variable accepts only two values. If it is set to 1, the audio is muted and if it is set to 0, the audio is un-muted. For you techies, this is an example of a Boolean variable in Adobe ...

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