Festival.txt

The system as a whole and most of the files in it are distributed
under the following copyright and conditions

                The Festival Speech Synthesis System
                Centre for Speech Technology Research                 
                     University of Edinburgh, UK                       
                      Copyright (c) 1996-2014
                        All Rights Reserved.                           
                                                                       
  Permission is hereby granted, free of charge, to use and distribute  
  this software and its documentation without restriction, including   
  without limitation the rights to use, copy, modify, merge, publish,  
  distribute, sublicense, and/or sell copies of this work, and to      
  permit persons to whom this work is furnished to do so, subject to   
  the following conditions:                                            
   1. The code must retain the above copyright notice, this list of    
      conditions and the following disclaimer.                         
   2. Any modifications must be clearly marked as such.                
   3. Original authors' names are not deleted.                         
   4. The authors' names are not used to endorse or promote products   
      derived from this software without specific prior written        
      permission.                                                      
                                  
  THE UNIVERSITY OF EDINBURGH AND THE CONTRIBUTORS TO THIS WORK        
  DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING      
  ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT   
  SHALL THE UNIVERSITY OF EDINBURGH NOR THE CONTRIBUTORS BE LIABLE     
  FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES    
  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN   
  AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,          
  ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF       
  THIS SOFTWARE.                                                       
                                                                       
Some further comments:

Every effort has been made to ensure that Festival does not contain
any violation of intellectual property rights through disclosure of
trade secrets, copyright or patent violation.  Considerable time and
effort has been spent to ensure that this is the case.  However,
especially with patent problems, it is not always within our control
to know what has or has not been restricted.  If you do suspect that
some part of Festival cannot be legally distributed please inform us
so that an alternative may be sought.  Festival is only useful if it
is truly free to distribute.

As of 1.4.0 the core distribution (and speech tools) is free.  Unlike
previous versions which had a commercial restriction.  You are free to
incorporate Festival in commercial (and of course non-commercial
systems), without any further communication or licence from us.
However if you are seriously using Festival within a commercial
application we would like to know, both so we know we are contributing
and so we can keep you informed of future developments.  Also if you
require maintenance, support or wish us to provide consultancy feel
free to contact us.

The voices however aren't all free.  At present the US voices, kal and
ked are free. Our British voices are free themselves but they use OALD
which is restricted for non-commercial use.  Our Spanish voice is also
so restricted.

Note other modules that festival supports e.g MBROLA and OGI
extensions, may have different licencing please take care when using
the system to understand what you are actually using.

--------------------------------------------------

A number of individual files in the system fall under a different
copyright from the above.  All however are termed "free software"
but most people.  

./src/arch/festival/tcl.c
 * Copyright (C)1997 Jacques H. de Villiers <jacques@cse.ogi.edu>
 * Copyright (C)1997 Center for Spoken Language Understanding,
 *                   Oregon Graduate Institute of Science & Technology
 See conditions in file.  This is the standard TCL licence and hence
 shouldn't cause problems from most people.

./examples/festival_client.pl
# Copyright (C) 1997
# Kevin A. Lenzo (lenzo@cs.cmu.edu) 7/97
 See condition in file

./src/modules/clunits/*
./lib/*clunits*
 Joint copyright University of Edinburgh and Carnegie Mellon University
 Conditions remain as free software like the rest of distribution

./src/modules/clustergen/*
 Copyright Carnegie Mellon University
 Nagoya Insitute of Technology (derived code from HTS)
 HTS_vocoder_me.c HTS_vocoder_me.h
   contains additions from Aby Louw 
   Copyright (c) 2012 The Department of Arts and Culture,
   The Government of the Republic of South Africa.       
   under a free software licence compatible with the other
   free software copyrights in this work

./src/modules/hts_engine/*
./lib/hts.scm
 The HMM-based speech synthesis system (HTS)
 hts_engine API version 1.07 (http://hts-engine.sourceforge.net/)
 Copyright (C) 2001-2012  Nagoya Institute of Technology
               2001-2008  Tokyo Institute of Technology
 All rights reserved.
 distributed under the Modified BSD licence.

./lib/festival.el
;;;               Copyright (C) Alan W Black 1996
copyright under FSF General Public Licence

Please also read the COPYING section of speech_tools/README for the
conditions on those files.