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/usr/share/doc/praat/copyright is in praat 6.0.37-2.

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Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: Program for speech analysis and synthesis
Upstream-Contact: Paul Boersma <paul.boersma@uva.nl>
Source: http://www.fon.hum.uva.nl/praat/download_sources.html

Files: *
Copyright: 1990-2018 Paul Boersma
           1992-2017 David Weenink
           2007 Erez Volk
           2002 Hansjoerg Mixdorff
           2008, 2017 Stefan de Konink
           2010 Franz Brausse
           2013 Tom Naughton
License: GPL-2+

Files: external/glpk/*
Copyright: 1996-2010 Andrew Makhorin
License: GPL-3+

Files: external/flac/*
Copyright: 2000-2007 Josh Coalson
License: BSD-3
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions
 are met:
 .
 - Redistributions of source code must retain the above copyright
 notice, this list of conditions and the following disclaimer.
 .
 - Redistributions in binary form must reproduce the above copyright
 notice, this list of conditions and the following disclaimer in the
 documentation and/or other materials provided with the distribution.
 .
 - Neither the name of the Xiph.org Foundation nor the names of its
 contributors may be used to endorse or promote products derived from
 this software without specific prior written permission.
 .
 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Files: external/flac/flac_share_alloc.h
Copyright: 2007 Josh Coalson
License: LGPL-2.1+

Files: external/mp3/*
Copyright: 2000-2004 Underbit Technologies, Inc
           2007 Erez Volk
License: GPL-2+

Files: external/portaudio*/*
Copyright: 1999-2011 Ross Bencina
           1999-2011 Phil Burk
           1999-2007 Robert Marsanyi
           1999-2007 Andrew Baldwin
           2002 Joshua Haberman <joshua@haberman.com>
           2005-2009 Arve Knudsen <aknuds-1@broadpark.no>
           2005-2006 Bjorn Roche
	   2004 Stefan Westerfeld <stefan@space.twc.de>
	   2008 Kevin Kofler <kevin.kofler@chello.at>
	   2003 Fred Gleason <fredg@salemradiolabs.com>
	   2005,2006 Ludwig Schwardt <schwardt@sun.ac.za>
	   2011 Eliot Blennerhassett <eblennerhassett@audioscience.com>
License: MIT
 Permission is hereby granted, free of charge, to any person obtaining
 a copy of this software and associated documentation files
 (the "Software"), to deal in the Software without restriction,
 including without limitation the rights to use, copy, modify, merge,
 publish, distribute, sublicense, and/or sell copies of the Software,
 and to permit persons to whom the Software is furnished to do so,
 subject to the following conditions:
 .
 The above copyright notice and this permission notice shall be
 included in all copies or substantial portions of the Software.
 .
 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
 ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
 CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Files: external/glpk/amd*
Copyright: 2007 Timothy A. Davis, Patrick R. Amestoy, and Iain S. Duff
License: GPL-2+

Files: external/glpk/colamd.c
Copyright: 1998-2007 Timothy A. Davis
License: LGPL-2.1+

Files: external/espeak/*
Copyright: 2005-2014 Jonathan Duddington
           2010 Nicolas Pitre
           2010 Bill Cox
           2007 Gilles Casse
           2008 Sun Microsystems, Inc.
           1993-1994 Jon Iles and Nick Ing-Simmons
License: GPL-3+

Files: external/espeak/espeakdata_FileInMemory.*
Copyright: 2012 David Weenink
License: GPL-2+

Files: contrib/ola/*
Copyright: 2007-2009 Ola Söder
           2010-2011, 2015 Paul Boersma
License: GPL-2+

Files: external/gsl/*
Copyright: 1996-2004, 2006-2007 Brian Gough
           1996-2006 Gerard Jungman
           1996-2000, 2003-2004, 2007 James Theiler
           1996-2001, 2007 Thomas Walter
           1996-2000, 2007 Jim Davies
           2006-2007 Patrick Alken
           1996-2000, 2007 Reid Priedhorsky
           2000 Simone Piccardi
           1996-2000 Fabrice Rossi
           2004 Ivo Alxneit
           2002, 2004 Jason H. Stover
           1996-2000 Michael Booth
           2000-2011, 2004 David Morrison
           2001 Carlo Perassi
           2003 Heiko Bauke
           2002-2003 Lowell Johnson
           2001 Szymon Jaroszewicz
           2004 Joerg Wensch
           2002 Przemyslaw Sliwa
           2002, 2004 Jason H. Stover
           2001 Jason Beegan
           1996-2000, 2004, 2007 Jorma Olavi Tähtinen
           1996-2000 Mark Galassi
           2002 Achim Gaedke
           2002 Atakan Gurkan
           2002 Gavin E. Crooks
           2002 Tuomo Keskitalo
           1996-2000, 2007 John Fisher
           1997 Makoto Matsumoto
           2006 Charles Karney
           2001 Dan, Ho-Jin
           2006 Erik Schnetter
           2002 Gavin E. Crooks
           1996-2000, 2002, 2004, 2007 David Necas
           2002 Gert Van den Eynde
           1998-2000 Theodore C. Belding
           2004, 2006 Giulio Bottazzi
           2001 Henry Sobotka
           2005 Jochen Voss
           2001-2002 Nicolas Darnis
           2003 Olaf Lenz
           2002 Przemyslaw Sliwa
           2001 Rodney Sparapani
           2000 Vladimir Kushnir
           1996-2000 Tim Mooney
License: GPL-3+

Files: kar/ipaSerifRegularPS.cpp
Copyright: 2005 Rafael Laboissière
License: GPL-2+

Files: dwsys/regularExp.h
Copyright: 1986, 2002 The NEdit Developers
License: GPL-2+

Files: dwsys/NUMmathlib.cpp
Copyright: 1998, Ross Ihaka
           2000-2007, The R Core Team
License: GPL-2+

Files: debian/*
Copyright: 2005-2009, 2012-2018 Rafael Laboissière <rafael@debian.org>
           2009-2011 Andreas Tille <tille@debian.org>
License: GPL-3+

License: GPL-2+
 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.
 .
 You should have received a copy of the GNU General Public License
 along with this program; If not, see <http://www.gnu.org/licenses/>.
 .
 On Debian systems, the complete text of the GNU General Public
 License, version 2, can be found in the file
 `/usr/share/common-licenses/GPL-2'.

License: GPL-3+
 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 3 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.
 .
 You should have received a copy of the GNU General Public License
 along with this program; if not, see <http://www.gnu.org/licenses/>.
 .
 On Debian systems, the complete text of the GNU General Public
 License, version 3, can be found in the file
 `/usr/share/common-licenses/GPL-3'.

License: LGPL-2.1+
 This library is free software; you can redistribute it and/or
 modify it under the terms of the GNU Lesser General Public
 License as published by the Free Software Foundation; either
 version 2.1 of the License, or (at your option) any later version.
 .
 This library 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
 Lesser General Public License for more details.
 .
 You should have received a copy of the GNU Lesser General Public
 License along with this library; if not, write to the Free Software
 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 .
 On Debian systems, the complete text of the GNU General Public
 License, version 3, can be found in the file
 `/usr/share/common-licenses/LGPL-2.1'.