Visualization Tools for Automatic Speech Recognition

• Extract the HMM statistics from the HMM Macro Model File (MMF) using /export/zak/macrophone/lab/visual/mmf2vec.pl.
  Run the script with no arguments to get the usage.
  The statistics are written to an output file which you specify with the -o option.
• A sample run can be
  mmf2vec.pl -c 10 -s 4,10 -H MMF -o out.txt hmmList
  You can specify the HMMs you want statistics for in the hmmList file. For example, if you don't want to print statistics for the silence model, exclude it from hmmList. In this way you can also look at specific confusion pairs or groups of confusable models only.
• Start Matlab from the command prompt: matlab -nodesktop
  Matlab is at /apps/matlab/bin/matlab
• Run asrtut from Matlab command prompt. It will ask for the output file you generated from the mmf2vec.pl script. It then plots the means of the different Gaussians.
• Run asrtut_2MMF to see how the means move in two different models.