13.1.2 Use

HBUILD is invoked by the command line

   HBuild [options] wordList outLatFile

The wordList should contain a list of all the words used in the input language model. The options specify the type of input language model as well as the source filename. If none of the flags specifying input language model type are given a simple word-loop is generated using the wordList given. After processing the input language model, the resulting lattice is saved to file outLatFile.

The operation of HPARSE is controlled by the following command line options

-b
Output the lattice in binary format. This increases speed of subsequent loading (default ASCII text lattices).

-m fn
The matrix format bigram in fn forms the input language model.

-n fn
The ARPA/MIT-LL format back-off bigram in fn forms the input language model.

-s st en
Set the bigram entry and exit words to st and en. (Default !ENTRY and !EXIT). Note that no words will follow the exit word, or precede the entry word. Both the entry and exit word must be included in the wordList.

-t st en
This option is used with word-loops and word-pair grammars. An output lattice is produced with an initial word-symbol st (before the loop) and a final word-symbol en (after the loop). This allows initial and final silences to be specified. (Default is that the initial and final nodes are labelled with !NULL). Note that st and en shouldn't be included in the wordList unless they occur elsewhere in the network.

-u s
The unknown word is s (default !NULL). This option only has an effect when bigram input language models are specified. It can be used in conjunction with the -z flag to delete the symbol for unknown words from the output lattice.

-w fn
The word-pair grammar in fn forms the input language model. The file must be in the format used for the ARPA Resource Management grammar.

-x fn
The extended HTK lattice in fn forms the input language model. This option is used to expand a multi-level lattice into a single level lattice that can be processed by other HTK tools.

-z
Delete (zap) any references to the unknown word (see -u option) in the output lattice.

HBUILD also supports the standard options -A, -C, -D, -S, -T, and -V as described in section 4.4.