This program is used to convert input files that represent language models in a number of different formats and output a standard HTK lattice. The main purpose of HBUILD is to allow the expansion of HTK multi-level lattices and the conversion of bigram language models (such as those generated by HLSTATS) into lattice format.
The specific input file types supported by HBUILD are:
The formats of both types of bigram supported by HBUILD are described in Chapter 11. The format for multi-level HTK lattice files is described in Chapter 16.