Flite is free software.

We have kept the core code to BSD-like copyright, thus the system is
free to use in commercial products, with commercial extensions.  GPL
code is only included as part of the build process and does not
taint any of the run-time code.

As a collection it is distributed under the following license.  Note
a few files in this distribution have a different but equally free
non-conflicting license, see below.

                  Language Technologies Institute
                     Carnegie Mellon University
                      Copyright (c) 1999-2014
                        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.

  CARNEGIE MELLON UNIVERSITY 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 CARNEGIE MELLON UNIVERSITY 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.

All files within this distribution have the above license except
the following

src/cg/cst_mlpg.h
src/cg/cst_mlpg.c
src/cg/cst_mlsa.h
src/cg/cst_mlsa.c
src/cg/cst_vc.h
src/cg/cst_vc.c
*********************************************************************
*                                                                   *
*            Nagoya Institute of Technology, Aichi, Japan,          *
*       Nara Institute of Science and Technology, Nara, Japan       *
*                                and                                *
*             Carnegie Mellon University, Pittsburgh, PA            *
*                      Copyright (c) 2003-2004                      *
*                        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.                    *
*                                                                   *
*  NAGOYA INSTITUTE OF TECHNOLOGY, NARA INSTITUTE OF SCIENCE AND    *
*  TECHNOLOGY, CARNEGIE MELLON UNIVERSITY, 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 NAGOYA INSTITUTE OF TECHNOLOGY, NARA           *
*  INSTITUTE OF SCIENCE AND TECHNOLOGY, CARNEGIE MELLON UNIVERSITY, *
*  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.         *
*                                                                   *
*********************************************************************

These functions are derived from the versions in festvox/src/vc/ as
modified by Tomoki Toda which in turn contain code derived from
NITECH's HTS system.  Their copyright has the same freedoms as
as Flite's but under NAIST, NITECH and/or CMU.

src/audio/au_wince.c
src/utils/cst_file_stdio.c
src/utils/cst_mmap_posix.c
src/utils/cst_mmap_win32.c
src/utils/cst_mmap_none.c
src/utils/cst_file_wince.c
sapi/
      are copyright Cepstral, LLC rather than CMU but fall under the same
      free license as the above, except for the owner. (Note the SAPI stuff
      probably doesn't work any more)

doc/alice
   Is the first two chapters of Alice in Wonderland as distributed by the
   Gutenburg project and is now in the public domain

src/regex/regexp.c
src/regex/regsub.c

 *      Copyright (c) 1986 by University of Toronto.
 *      Written by Henry Spencer.  Not derived from licensed software.
 *
 *      Permission is granted to anyone to use this software for any
 *      purpose on any computer system, and to redistribute it freely,
 *      subject to the following restrictions:
 *
 *      1. The author is not responsible for the consequences of use of
 *              this software, no matter how awful, even if they arise
 *              from defects in it.
 *
 *      2. The origin of this software must not be misrepresented, either
 *              by explicit claim or by omission.
 *
 *      3. Altered versions must be plainly marked as such, and must not
 *              be misrepresented as being the original software.

src/speech/rateconv.c

 *      Copyright (c) 1992, 1995 by Markus Mummert
 *
 *      Redistribution and use of this software, modifcation and inclusion
 *      into other forms of software are permitted provided that the following
 *      conditions are met:
 *
 *      1. Redistributions of this software must retain the above copyright
 *         notice, this list of conditions and the following disclaimer.
 *      2. If this software is redistributed in a modified condition
 *         it must reveal clearly that it has been modified.

lang/usenglish/us_durz_cart.c
lang/usenglish/us_durz_cart.h
lang/usenglish/us_int_accent_cart.c
lang/usenglish/us_int_accent_cart.h
lang/usenglish/us_int_tone_cart.c
lang/usenglish/us_int_tone_cart.h
lang/usenglish/us_phoneset.c
lang/usenglish/us_f0lr.c
   These are directly (or indirectly) compiled/derived from files that are
   part of the Festival Speech Synthesis System (1.4.1).  Hence they have
   a joint copyright CMU/Edinburgh but with the same free license

configure
   # Copyright (C) 1992, 93, 94, 95, 96 Free Software Foundation, Inc.
   #
   # This configure script is free software; the Free Software Foundation
   # gives unlimited permission to copy, distribute and modify it.

configure.sub
config.guess
missing
install-sh
mkinstalldirs
   Copyright FSF, and under the GPL, these files are only used for
   convenient configuration and are not part of the generated binary,
   and therefore do not impose any GPL restrctions on the rest of the
   system.  But as they are standard methods for configuration they
   are included.

src/speech/g72x.h
src/speech/g721.c
src/speech/g72x.c
src/speech/g723_24.c
src/speech/g723_40.c

 *
 * This source code is a product of Sun Microsystems, Inc. and is provided
 * for unrestricted use.  Users may copy or modify this source code without
 * charge.
 *
 * SUN SOURCE CODE IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING
 * THE WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
 *
 * Sun source code is provided with no support and without any obligation on
 * the part of Sun Microsystems, Inc. to assist in its use, correction,
 * modification or enhancement.
 *
 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY THIS SOFTWARE
 * OR ANY PART THEREOF.
 *
 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
 * or profits or other special, indirect and consequential damages, even if
 * Sun has been advised of the possibility of such damages.
 *
 * Sun Microsystems, Inc.
 * 2550 Garcia Avenue
 * Mountain View, California  94043
 *

lang/cmu_grapheme_lex/grapheme_unitran_tables.c
 * Copyright 2008-2012, University of Illinois at Urbana-Champaign          *
 * distributed under the Apache License, Version (2.0)                      *
 * http://www.apache.org/licenses/LICENSE-2.0                               *
 * Original table developed by Richard Sproat and Kyoung-young Kim          *
 * Ported for Festvox by Gopala Anumachipalli gopalakr@cs.cmu.edu Sep 2012  *
 * Then converted to C for CMU Flite (cmuflite.org)                         *