Sound :
SoundSentry- Turns on SoundSentry, which
instructs your computer to flash part of your screen every
time the system's built-in speaker plays a sound. You can
specify which part of the screen flashes by clicking
Settings. This is especially useful for
people that are unable to hear the sounds their computer
makes.
ShowSounds - .Turns on ShowSounds, which
instructs programs that usually convey information only by
sound also to provide all information visually, such as by
displaying text captions or informative icons.