Click on the speaker icon or the highlighted text link to play the audio clip. If you don't hear anything, then review the following checklist:
Make sure you have a sound board and speakers installed in your computer, and that they are functioning properly
Configure your internet browser to "recognize" audio files in the WAV format
Set your browser to automatically play files whose names end with the .wav extension using the audio player software that's already on your system. This is commonly referred to as setting up a "helper application" and is explained in your browser's help files.
Return to the page with the audio-clip link and click on it to play the clip. If it still doesn't work, you may need to configure the browser again, save the changes, exit the browser, and restart it for the changes to take effect.