1. A method for modifying a language model, the method comprising the steps of: identifying accented speech pronunciations of words of a language; identifying pronunciation differences between customary speech pronunciations and the accented speech pronunciations; identifying, for each of said pronunciation differences, a first list of words in the language model that instantiate said pronunciation differences; selectively adding the first list of words and their accented speech pronunciations to an accented speech file; and modifying the language model according to the accent speech file.