Abstract: In a computerized method, text segments of a text file are aligned with audio segments of an audio file. The text file includes written words, and the audio file includes spoken words. A vocabulary and language model are generated from the text segment. A word list is recognized from the audio segment using the vocabulary and language model. The word list is aligned with the text segment, and corresponding anchors are chosen in the word list and text segment. Using the anchors, the text segment and the audio segment are partitioned into unaligned and aligned segments according to the anchors. These steps are repeated for any unaligned segments until a termination condition is reached.