14. A method for recognizing speech, said method comprises the steps of: providing in response to speech an utterance template having a plurality of positions, each having a binary value stored therein each said binary value in each said position representing a spectral feature of said speech; providing a plurality of reference templates each representing different selected speech and each having a plurality of positions, each of said positions representing a spectral feature corresponding to the spectral features represented by said plurality of positions in said utterance template, and having a value stored therein, each stored value representing a probability of a particular binary value occurring in the corresponding position in said utterance template for the speech represented by the reference template having the value stored therein; providing outputs from said reference templates, each output corresponding to one of said plurality of positions and having a value determined by said value stored therein; selecting outputs of the reference templates corresponding to positions of the utterance template having the particular binary value stored therein; summing the selected outputs of each said reference template, said sums being scores indicative of a relative match between the utterance template and the respective reference templates; and selecting the reference template having the highest score as representing the speech, whereby the speech represented by the utterance template is recognized as the speech represented by the reference template having the highest score.
25. Method as claimed in claim 14, further comprising the step of: enrolling said plurality of reference templates for said different selected speech by increasing the values stored in positions of a reference template for a selected speech each time an utterance template for the selected speech contains in corresponding positions the particular binary value, each said reference template being enrolled from a plurality of utterance templates formed from speech represented by the reference template being enrolled.