Is the sound too low? We are aware of a RealPlayer volume problem with our meetings. Unfortunately we don't have very much control over the output due the way RealEncoder works and the equipment we are using. Here are some suggestions to help.

In Windows, there are 4 diferent volume contols on your computer that will effect our volume.

Double click the sound icon in the taskbar tray (near the clock)
Try turning up the Master volume and the Wave volume.
If you don't see the Wave volume, click Options > Propperties.
Make sure both Master and Wave are checked.
Another volume control is inside Real Player, turn that one up.
Finally, most computer speakers have their own volume control.

Don't forget to turn them back down when you leave.