Free Acoustic Models

• ​ATK distribution contains compiled HMM models! - not sure if the compiled version is usable with Julius.

Sphinx

• English
  • Sphinx distributions include English Acoustic Models
  • Keith Vertanen's free Acoustic Models (no source audio) using Wall Street Journal (WSJ) Corpus:
    • ​Trained acoustic models for Sphinx
• French
  • ​Sphinx French Acoustic and Language Models

HTK/Julius

• Keith Vertanen's free Acoustic Models (no source audio) using Wall Street Journal (WSJ) Corpus:
  • ​Trained acoustic models for HTK (in HTK binary - can be converted to ASCII so Julius can read them - see this ​link)

Unsupervised training - papers

• ​Unsupervied Acoustic Model Training