An excellent site for HTK based speech recognition for the portuguese language is Falab Brazil, includes:

Software:

• Coruja 1.0 - a C++ API for CLR (Windows Common Language Runtime) for the Julius decoder.
  
  • Owl 1.0 (Windows) - Composite lapse v1.3 + LapsAPI.
  • Coruja 1.0 (Linux) Owl 1.0 (Linux)
  • English Documentation
    

• Grapheme-phone Converter v1.4

Acoustic Models and Language:

• LAPSA v1.3 - Acoustic Model created with HTK.
• LaPSLM v1.0 - Language Model N-gram built with the toolkit SRILM

Phonetic Dictionary:

• UFPAdic.2.0 -  32 phones based on SAMPA alphabet.
• UFPAdic.3.0 - New phonetic dictionary with 38 phones also based on SAMPA alphabet.

Speech Corpus:

• LapsBenchMark1.4 - Corpus voice used to evaluate the performance of LVCSR systems.
  

Text Corpora:

• TextCorpora1.5 - Set of sentences used for training language models.
• LapsNews1.0 - (former LapsFolha) - First version of the new corpora of text-based automatic extraction of text from the web.  Version with 120 thousand sentences.

Scripts for training of Acoustic and Language Models:

• Acoustic Model - A set of scripts used for training and testing of acoustic models using the HTK tool.
• Language Model - A set of scripts used to train language models.