There are at least 3 and maybe 4 different places to adjust the volume when viewing WMDS on the computer or ipad.
1. The speakers you are using.
2. The computer – on Windows, click the volume icon on the bottom right. Make sure things are not muted and the volume is all the way up.
3. There also may be some hardware buttons that mute/unmute the audio and adjust the volume.
4. ONSCREEN, there is yet ANOTHER volume control!
Slide the volume slider to Max.