5. The method of claim 1 , further comprising: identifying a contextual state of the graphical user interface; and wherein the voice command is selected from a context-specific subset of the set of voice commands, the context-specific subset including voice commands for controlling operation of the computing system in the contextual state.
7. The method of claim 5 , wherein identifying the contextual state of the graphical user interface includes identifying a plurality of contextual states, and the method further comprises: assigning a priority order to the plurality of contextual states; and wherein the voice command is selected according to the priority order.