8. A system as recited in claim 7 , the acts further comprising determining an execution parameter based at least in part on the determined decrease or increase in the volume level of the sound such that the execution parameter describes how the command is to be executed.
8. A system as recited in claim 7 , the acts further comprising determining an execution parameter based at least in part on the determined decrease or increase in the volume level of the sound such that the execution parameter describes how the command is to be executed. 9. A system as recited in claim 8 , wherein the execution parameter describes at least one of a degree to which the first action or the second action is to be performed or a rate at which the first action or the second action is to be performed.