Turning the Master Track On or Off
The Master track is turned on by default. When its activation checkbox is deselected, no
sound is audible when you play the project, and no audio is included when you export
your project. When the checkbox is selected, all audio tracks that are active are included
in your export.
To turn the Master track on or off
Click the checkbox at the left side of the Master track, then click the checkbox again to
return the Master track to its previous state.