If you are having trouble hearing a broadcast, make sure the volume is turned up on both your computer and the media player here on the website.

First, click on the speaker icon circled in the picture below.

This brings up a bar that shows the volume level of the player. When the page loads by default the player will be at 50% volume. If this is too low for you even with your computer speakers turned up, click higher on the bar to raise the volume. When you have it at 100% it will look like the picture below.