7. The method of claim 1 , wherein determining whether or not one or more windows of windowed audio input representative of spoken speech meet one or more speech criteria includes determining whether or not one or more windows of windowed audio input representative of spoken speech contain a word corresponding to a word within a corpus.
10. The method of claim 7 , wherein counting a number of instances during which the one or more windows of windowed audio input representative of spoken speech meet one or more speech criteria includes counting the number of times a spoken word corresponds to at least one word contained within the corpus.