Download/installation notes for the Matlab STSA toolbox:

1. Download the tarred, gzipped installation file, STSA-Toolbox-X-XX.tar.gz,
   where X-XX is the version number.

2. In your base matlab work directory, untar/zip the file:

   > tar -xzf STSA-Toolbox-X-XX.tar.gz

3. When unzipped, the installation file will create its own
   subdirectories (if they do not exist already), which you will need
   to add to your matlab path (e.g., copy the following and paste it
   into your startup.m file):

   addpath( ...
    [root filesep 'stsa'], ...    
    [root filesep 'stsa' filesep 'demos'], ...
    [root filesep 'stsa' filesep 'display'], ...
    [root filesep 'stsa' filesep 'eval'], ...
    [root filesep 'stsa' filesep 'fileio'], ...
    [root filesep 'stsa' filesep 'gaintabs'], ...
    [root filesep 'stsa' filesep 'noise'], ...
    [root filesep 'stsa' filesep 'pcptmdls'], ...
    [root filesep 'stsa' filesep 'postproc'], ...
    [root filesep 'stsa' filesep 'preproc'], ...
    [root filesep 'stsa' filesep 'specmod'], ...
    [root filesep 'stsa' filesep 'stft'], ...
    [root filesep 'stsa' filesep 'suprules'], ...
    [root filesep 'stsa' filesep 'suprules' filesep 'base']);

    where 'root' is (a string variable holding) your base matlab work
    directory.

4. Start Matlab, or simply re-read the startup file if within Matlab,
   and try running the included demo, /stsa/demos/stsatest.m, as 

   test = stsatest('myfile.wav');

   where myfile.wav is the full path and filename of a (short) .wav
   file of your choice.  In addition to printing some performance
   statistics, stsatest.m will return the structure 'test' containing
   data, results, and parameters.  Many unneeded parameters are set
   initially in stsatest.m so that you may easily experiment with the
   included noise reduction algorithms by modifying it.

5. Troubleshooting: the most common problem is due to a .mat-file
   version incompatibility; if stsatest.m fails due to this error, try
   downloading these winzipped versions of the .mat-file gain tables:

   http://www.eecs.harvard.edu/~patrick/research/stsa_toolbox/tabs1.zip
   http://www.eecs.harvard.edu/~patrick/research/stsa_toolbox/tabs2.zip

   and overwriting the existing files in the /gaintabs directory with
   them.

*********

Tested using Matlab 5.3.  Note that additional documentation will be
forthcoming but is not included in pre-release versions; basic
explanations are included in stsa/demos/stsatest.m and the individual
function files.

Please send comments/suggestions/bug reports to the author:

Patrick J. Wolfe
Division of Engineering and Applied Sciences
Harvard University
33 Oxford St., Rm. MD-129
Cambridge, MA 02138-2901
USA
p.wolfe@ieee.org

*********

Matlab STSA Toolbox for Audio Signal Noise Reduction
Copyright (C) 2001-2004  Patrick J. Wolfe

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or (at
your option) any later version.

This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
General Public License for more details (gpl.txt in this directory, or
see http://www.gnu.org/copyleft/gpl.html)

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
USA.