Storyline 2 won't play back with headphones Sep 19, 2017 By Justin Uihlein I have a unique situation. I'm trying to play back my slides with headphones plugged into the computer. When I listen to the sound files in development mode and with the Audio Editor, sound comes through the headphones. However, when I click Preview to view it in the Player, it comes through the main computer speakers and not the headphones....anybody experienced this before...very strange? Any ideas?