Method of expanding a vocabulary of a speech system

摘要

The invention relates to a computerized method of adding a new word to a vocabulary of a speech system said vocabulary comprising words and corresponding acoustic patterns for a language or language domain. Within a determination-step for said new word a regularity value is determined which measures the conformity with respect to the pronunciation in said language or language domain. In a comparison-step the regularity value is compared to a threshold value to decide, whether the conformity is insufficient. Only in the affirmative case of insufficient conformity a prompting-step is performed, prompting for additional information on the pronunciation of said new word. Finally in an extension-step the new word and an acoustic pattern of said new word to the vocabulary.