18. A computer system containing a process comprising: a memory that stores a confusability tool program and a transcripted phonemic lexicon, the confusability tool program including means for calculating a Levinstein distance between first and second phonemic transcriptions from the lexicon, wherein the Levinstein distance corresponds to edit operations required to transform the first transcription, obtaining a phonemic transformation weight for each edit operation of the Levinstein distance, and summing the obtained phonemic transformation weights to generate a value indicating the likelihood of confusion between the first and second phonemic transcriptions; a processor configured to execute the confusability tool program in the memory; and a display that provides an ordered list of entries, each entry including the first and second transcriptions and a cost based on the value indicating the likelihood of confusion between the first and second phonemic transcriptions.
19. The computer system of claim 18, further including means for calculating cost by normalizing the minimum weighted Levinstein distance of multiple possible Levinstein distances between the first and second phonemic transcriptions.