• English pronunciation rules

Text/Graphemes to phoneme conversion scripts/toolkits

• Sequitur G2P - A language independent, trainable, Grapheme-to-Phoneme converter

Scripts

• Grapheme to phoneme converter for Tamil from Udyakumar Nallasamy's home page - rule based
• Naval Research Lab's rule based English text to phoneme system - from comp.speech FTP site
• t2p: Text-to-Phoneme Converter Builder - rule based - CMU
• MBRDICO
• MLRR - Multi-Layer Rewriting Rules
• pdbuilder from trefnydd: Speech Recognition Toolkit
• Aix-MARSEC scripts
  • paper

Using TTS-Engine-based scripts

• Festival (FestVox)
  • Building letter-to-sound rules by hand
  • Building letter-to-sound rules automatically
• espeak2Phones

Papers

• Grapheme-to-Phoneme conversion using Hidden Markov models,Paul Taylor, In Proc. Interspeech 2005
• Using Error-Driven Approach to Improve Automatic Grapheme-to-Phoneme
• Speech Recognition and Synthesis course Dan Jurafsky, Festival & Letter-to-Sound

Other

• Morpho project - hmm-based morpheme extraction
  

unsupervised data-driven methods that discover the regularities behind word forming in natural languages. In particular, we are focussing on the discovery of morphemes, which are the primitive units of syntax, the smallest individually meaningful elements in the utterances of a language

• Statistical Syllabification of English Phoneme Sequences using Supervised and Unsupervised Algorithms - paper