It uses a bigram model and Viterbi decoding. With the right corpora (the repo includes the King James Bible and some Lutheran hymnals, as the woman was reportedly Lutheran) it's easy to decode "OFWAIHHBTN" into "our father who are in heaven hallowed be thy name".
It uses a bigram model and Viterbi decoding. With the right corpora (the repo includes the King James Bible and some Lutheran hymnals, as the woman was reportedly Lutheran) it's easy to decode "OFWAIHHBTN" into "our father who are in heaven hallowed be thy name".