Audio missing from Q-Interactive support videos

The "How to Administer a Battery - Verbal Fluency and Verbal Memory Subtests" and "How to Administer a Battery - Arrange Subtests" videos do not have sound by design.  Instead, there are green text balloons that explain the process.  To facilitate reading the text, click the button in the lower-right corner of the video player to place the video player in full-screen mode.  Pressing the Esc key will exit full-screen mode once you have finished watching the video.