3. The method of claim 1 wherein the act of assigning weights to characteristics of each source voice font further comprises the acts of: assigning a duration weight to each source voice font; assigning a f0 weight to each source voice font; and assigning a spectrum weight to each source voice font.
3. The method of claim 1 wherein the act of assigning weights to characteristics of each source voice font further comprises the acts of: assigning a duration weight to each source voice font; assigning a f0 weight to each source voice font; and assigning a spectrum weight to each source voice font. 4. The method of claim 3 wherein the act of predicting characteristic values for the text using each source voice font further comprises the act of predicting duration values, voiced/unvoiced probability values, f0 values, and spectral trajectory values for the text using each source voice font.