英文文字识别：Tesseract.js-core 6.0.0（https://github.com/naptha/tesseract.js-core），Tesseract、Leptonica；英文识别参数来自 @tesseract.js-data/eng 1.0.0 / 4.0.0_best_int。
词典：ECDICT（https://github.com/skywind3000/ECDICT）。本应用抽取常见单词及词形，整理并缩短释义。
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Leptonica
/*====================================================================*
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-
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- modification, are permitted provided that the following conditions
- are met:
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- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*====================================================================*/
词典快照打包自 ecdict 0.0.4，数据源为 ECDICT。
MIT License
Copyright (c) 2022 Yan
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,
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SOFTWARE.
12 段入门词音频使用 CMU Flite 的美式英语 SLT 音色生成（https://github.com/festvox/flite）。
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 licence, see below.
Language Technologies Institute
Carnegie Mellon University
Copyright (c) 1999-2017
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/ (non-CG)
are copyright Cepstral, LLC rather than CMU but fall under the same
free licence as the above, except for the owner.
sapi/ CG support
are copyright Cobalt, LLC rather than CMU but fall under the same
free licence as the above, except for the owner.
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 licence
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) */