Sounds used in TimedTrainer are:
http://soundbible.com/1003-Ta-Da.html
http://soundbible.com/1206-Door-Buzzer.html
http://soundbible.com/1252-Bleep.html
http://soundbible.com/1251-Beep.html
http://soundbible.com/1598-Electronic-Chime.html
http://soundbible.com/1745-Ship-Brass-Bell.html
