5. The method of claim 4 , further comprising: converting all of the plurality of speech signals to words using the specific one of the multiple secondary vocabulary applications.
4. The method of claim 3 , wherein classifying the plurality of words and classifying the one or more unrecognized words using the first classification process and the second classification process are based on using a classifier comprising at least one of binary classification, use of feature vectors, linear classification and non-linear classification.