14. The method of claim 12 , wherein selecting at least one best transcription from the plurality of audio file transcriptions further comprises filtering the plurality of audio file transcriptions based upon the overall transcription quality scores for each audio file transcription to select a set of high quality audio file transcriptions from the plurality of audio file transcriptions.
12. The method of claim 5 , further comprising: evaluating the at least one confusion network on an utterance by utterance basis to determine an utterance by utterance conformity between a respective audio file and the language model; and evaluating the at least one confusion network on an overall basis to determine an overall conformity between a respective audio file and the language model.