6. The method of claim 1 , further comprising determining whether at least one of the voice units conforms to at least one pronunciation error pattern.
6. The method of claim 1 , further comprising determining whether at least one of the voice units conforms to at least one pronunciation error pattern. 7. The method of claim 6 , further comprising determining a correction action according to the pronunciation error pattern when a specific voice unit within the voice units conforms to the pronunciation error pattern.