Patent attributes
Speech recognition systems that use voice templates may create (or update) voice templates for a particular user by training (or re-training). If a training results in a vocabulary with similar voice templates, then the speech recognition system's performance may suffer. The present invention provides embraces methods for training a speech recognition system to prevent voice template similarity. In these methods, a trained word's voice template may be evaluated for similarity to other vocabulary templates prior to enrolling the voice template into the vocabulary. If template similarity is found, then a user may be prompted to retrain the system using an alternate word. Alternatively, the user may be prompted to retrain the system with the word spoken more clearly. This dynamic enrollment training analysis insures that all templates in the vocabulary are distinct.
