Inventions on using sound and speech in GUI
  Voice Recognition (VR) facilitates a human interaction with the machine. VR may be used to replace the manual task of pushing buttons on a wireless telephone keypad. This is particularly useful when the hands of the user are busy with other activities like driving a car.   However, the VRS system has several limitations. The VRS requires lot of training and customization in order to be effectively used by individual users as each individual falls into different voice patterns. Besides the voice interface is complex and is not as reliable as the keyboard or mouse. This article illustrates some interesting inventions on using sound and voice in Graphical User Interfaces. 
Umakant Mishra
cs.HC