name: create_mixtures
synopsis: create_mixtures [options]

description:  

This utility is used to increment the number of Gaussians in a state
to a user specified number. We use a simple algorithm to do this. We
progressively create new components by perturbing the means of the
existing Gaussians by a small amount(0.1). When the input contains
several mixture components, we start by splitting the Gaussian with
the largest mixture weight and go on to the mixture with the next
highest mixture weight. In case of a tie, we split the first mixture
that we encounter.

arguments:
   -input input_file     : input states file (must be in binary format)
   -output output_file   : output states file in ascii format
   -num_mixtures num	 : number of mixtures needed (> the current number of
                           mixtures)

options:
   -help                 : to view this message

examples:

 create_mixtures -input input_states.bin -output output_states.text -num_mixtures 4

man page: http://www.isip.msstate.edu/projects/speech/education/toolkits/asr/acoustic_models/training/create_mixture.html
