Please follow the directions below, if you still have trouble hearing the audio contact:

• Make sure you have your speakers turned on and up to a sufficient volume and that your computer's system sound is not set to mute or too low a volume setting. We recommend using any of the following browsers:
  * Google Chrome
  * Mozilla Firefox 10.0 and later
  * Safari 5.0 or later
  * Internet Explorer (IE) 8.0 and later.
• The audio files should play on IE8; however, if you have installed the Quick Time player on your PC, this may affect the IE8 browser’s ability to play audio files. In such a scenario, uninstall the Quick Time player and enable the windows media player ActiveX plugin to play the audio files. The following steps will guide you through the process:
  
  1.Launch the IE8 browser.
  2.From the “Tools” menu, select “Manage Add-Ons.”
  3.From the “Show” drop-down menu, ensure that “All add-ons” is selected.
  4.The ActiveX controls are listed as illustrated in the image below. Select “Windows Media Player” (highlighted blue) in the “Microsoft Corporation” category and then enable the “Windows Media Player” by right clicking the ActiveX control and clicking the “Enable” option.