• Verify that the volume settings on the video player are set correctly.
  • Verify that your speaker volumes are set correctly. On a Windows computer, double-click the volume icon in the system tray. On a Mac, the volume controls can be found in the top right of your screen.
  • Verify that other media players on your computer can play sound correctly, such as Windows Media Player or Quicktime. Also, make sure that the volume on these other media players is up. 
  • Ensure that sound works on other video sites like YouTube. If not, please check your local player or local settings to adjust.