Provisio has a beta of their new SiteKiosk product for android tablets. It looks like it might do what you are looking for.

http://www.provisio.com/SiteKiosk/SiteKiosk_8_SiteKiosk_Android_beta.aspx

I ma thirty years old, and like you that is far from the upper range of my hearing. In my case depending upon the frequency it also becomes quite painful.