We need to normalise the input text so that it contains a sequence of pronounceable words.
in Dan Jurafsky and James H. Martin “Speech and language processing: an introduction to natural language processing, computational linguistics, and speech recognition”, 2009, Pearson Prentice Hall, Upper Saddle River, N.J., Second edition, ISBN 0135041961
University of Edinburgh online access
Scanned copy of chapter 8 (University of Edinburgh students only)
