2. The method of claim 1 , further comprising: comparing reference templates to said test utterance; and selecting for adaptation said reference template that is most similar to said test utterance.
1. A method comprising: adapting a reference template stored in a computer-readable memory by replacing only a portion of existing data within said reference template with a weighted interpolation of said portion and corresponding data within a test utterance, wherein the reference template includes data indicative of physical characteristics of a voice of a person.