CMU Sphinx:

• Training acoustic models for CMUSphinx (using SphinxTrain)
  
• Forum for asking questions

Open-Source Large Vocabulary CSR Engine Julius:

• VoxForge tutorial for training acoustic models for Julius (uses HTK toolkit)
• Forums for asking technical questions

--- (Edited on 12/13/2010 11:12 am [GMT-0500] by kmaclean) ---