To change the playback range to the duration of the current sound file
 -click the Time Slider and select Set Range To > Sound Length in the pop-up menu that appears.
-click the Time Slider and select Set Range To > Sound Length in the pop-up menu that appears.
            To set the audio playback speed
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            Sound will play back as long as the speed setting is not set to Play every frame.
To disable sound during playback
 -click the Time Slider and select Sound > Off.
-click the Time Slider and select Sound > Off. 
            To access the sound options for audio nodes
 -click the Time Slider and select Sound > filename >
-click the Time Slider and select Sound > filename >  .
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