This file replaces LICENSES.txt (v0.23 to v0.27), which browsers keep for a year: the licences below are as they were there, and the voice libraries' record (LIBRARY_SPEC §4.5) comes first, then (since v0.29) the word lists and their meanings. The libraries and data from npm are copied unchanged from their packages, which jsDelivr also serves; the page's table of traditional forms is made from OpenCC's data (the last section). == The voice libraries: the tone and word libraries (lib/tones/v1, lib/words/v1) == These are the lab's own audio files, synthesised once with Microsoft Azure Speech (prebuilt neural voices) and served as files, from mandarin.lexlovers.com (from v0.26) and tinglilab.org (from v0.27). Nothing in them is a recording of a person. The record LIBRARY_SPEC.md §4.5 asks for: Synthesised on 17 October 2026 (the manifests' file times run from 05:23 to 07:08 UTC, 16:23 to 18:08 in Canberra; the tones first, the words from 06:10) on Azure Speech resource mandarin-rig, australiaeast, tier S0 (checked by make_library.py from a token before every call to Azure: product-id SpeechServices.S0; the tool refuses any other tier; both manifests record the resource as {tier SpeechServices.S0, region australiaeast, resource mandarin-rig}). Format audio-24khz-96kbitrate-mono-mp3, rate 0.9. No file was adopted from an earlier attempt: every file's SSML is the one that made it. Voices, as published: words: every entry of the lab's HSK 1-3 list (978 words), one clip a word, in seven voices: zh-CN-XiaoxiaoNeural, zh-CN-XiaoyiNeural, zh-CN-XiaohanNeural, zh-CN-YunxiNeural, zh-CN-YunyangNeural, zh-CN-YunjianNeural, zh-TW-HsiaoChenNeural; tones: every syllable the Tones tab drills (397), in all four tones (1,588 clips a voice), in four voices: zh-CN-XiaoxiaoNeural, zh-CN-XiaoyiNeural, zh-CN-XiaohanNeural, zh-TW-HsiaoChenNeural. The three male voices' tone clips were made too, measured unreliable in their tones (17 October 2026) and withdrawn from the tone index: on disk, unlisted, never played. A few syllables whose clip in one voice didn't keep its tone are withheld from that voice's index and played in another voice (Xiaoxiao 13 syllables, Xiaoyi 53, Xiaohan 31, HsiaoChen 11: library_config.json, tones.withhold). zh-TW-YunJheNeural was probed on 17 October 2026 and left out of v1. Files and billable characters a voice, from the two MANIFEST.json files: tones, 1,588 files a voice, 11,116 in all: zh-CN-XiaoxiaoNeural 124,256; zh-CN-XiaoyiNeural 124,256; zh-CN-XiaohanNeural 124,256; zh-CN-YunxiNeural 124,256; zh-CN-YunyangNeural 124,256; zh-CN-YunjianNeural 124,256; zh-TW-HsiaoChenNeural 120,855 (Bopomofo is shorter than the Mainland phonemes): 866,391 characters. words, 978 files a voice, 6,846 in all: each of the six Mainland voices 42,376; zh-TW-HsiaoChenNeural 39,260: 293,516 characters. Characters Azure processed in all, from ledger.json (updated 2026-10-17T07:08:10Z): 1,210,042. The libraries' run 1,159,907 (the two figures above); the listening samples of LIBRARY_SPEC §7.7, 38,450 (tones 13,559, words 24,891); the probe of §7.6, 11,685 (zh-CN-XiaoxiaoNeural 2,333, zh-TW-HsiaoChenNeural 4,676, zh-TW-YunJheNeural 4,676). Input: the lab's syllable inventory and HSK 1-3 list (data/), readings from the lab's own LabCore.annotate, SSML as the page's ssmlFor (Bopomofo phonemes for the Taiwan voice); every file's SSML is in its MANIFEST.json, kept with the ledger. Output used under the Microsoft Product Terms (Microsoft Customer Agreement program; Publication Date October 15, 2026, the edition in force on the synthesis days, kept with the lab's records), Microsoft Azure > Service Specific Terms > Foundry Tools and Content Safety > Text-to-Speech (TTS) Services, which says, verbatim: "Customer Data submitted to TTS Services: Customer represents and warrants that Customer has all necessary right, title, and interest to use all Customer's Data submitted to TTS Services." "TTS Service output use rights: For Customers of the paid tier TTS Service only, Customer may use the audio output of prebuilt neural voices generated using the TTS Service, including for commercial purposes." and, in the same section under "Limit on Customer use of service output": "Customer will not use and will not allow third parties to use Foundry Tools or data from Foundry Tools to create, train, or improve (directly or indirectly) a similar or competing product or service." Conditions observed: paid tier (S0); prebuilt neural voices (not custom, personal or HD voices); the input is the lab's own; the output is served to learners and its pitch contours are read to judge a learner's tones, and is not used to create, train or improve a voice model or a competing voice service. Disclosure that the voices are synthetic: help.html (Voices) and help-org.html, and Settings -> Voices on both sites. Invoice reference: the October 2026 Azure invoice, "Speech - Text to Speech - Neural" line: (to complete when the invoice arrives; the ledger's 1,210,042 characters above are what the libraries should account for in it, with the lab's ordinary use of the same resource on top). Codes of conduct: the Microsoft Enterprise AI Services Code of Conduct, which the terms name (https://aka.ms/AI-CoC), and the Code of conduct for Azure AI Speech text to speech (https://learn.microsoft.com/legal/cognitive-services/speech-service/text-to-speech/code-of-conduct), seen 16 October 2026. == The word lists and their meanings (data/hsk123.compact.json, data/hsk123.meanings.json, data/hsk123.young.json) == The HSK 3.0 Level 1 to 3 words the lab uses, with their levels, readings and meanings (embedded in index.html as window.HSK_DATA, window.HSK_MEANINGS and window.HSK_YOUNG), are made from complete-hsk-vocabulary (https://github.com/drkameleon/complete-hsk-vocabulary, wordlists/exclusive/newest: the November 2025 revision), which takes the HSK 3.0 lists from https://github.com/elkmovie/hsk30 and the meanings from CC-CEDICT. They are changed from it: the lab keeps Levels 1 to 3; v0.28's list cut each meaning at 70 characters (data/hsk123.compact.json, kept for the voice libraries); since v0.29 the meanings are kept in full (data/hsk123.meanings.json, made by patches/make_hsk123.py) but for the pronunciation note of one old form of a character (花's 蘤), and the page leaves out the notes that only point to another form of a character, and, for students, the trial and tinglilab.org, the senses and readings in data/hsk123.young.json. complete-hsk-vocabulary's licence, in full: MIT License Copyright (c) 2026 Yanis Zafirópulos 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. CC-CEDICT (https://www.mdbg.net/chinese/dictionary?page=cc-cedict), the source of the meanings, is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License (https://creativecommons.org/licenses/by-sa/4.0/). The meanings as the lab changes them (the files above) are shared under the same licence. == pinyin-pro 3.29.3 (lib/pinyin-pro-3.29.3.js = dist/index.js) == MIT License Copyright (c) 2022-present zh-lx 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. == microsoft-cognitiveservices-speech-sdk 1.51.0 (lib/speech-sdk-1.51.0.min.js = distrib/browser/microsoft.cognitiveservices.speech.sdk.bundle-min.js) == ------------------------------------------- START OF LICENSE ----------------------------------------- Microsoft Azure Cognitive Services Speech SDK Javascript Copyright (c) Microsoft Corporation All rights reserved. Component. uuid (https://github.com/uuidjs/uuid) Open Source License/Copyright Notice. Copyright (c) 2010-2020 Robert Kieffer and other contributors This software is licensed under the MIT License. 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. ----------------------------------------------- END OF LICENSE ------------------------------------------ == hanzi-writer 3.7.3 (lib/hanzi-writer-3.7.3.min.js = dist/hanzi-writer.min.js) == The MIT License (MIT) Copyright (c) 2014 David Chanin 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. == hanzi-writer-data 2.0.1 (lib/hanzi-writer-data-2.0.1/: the whole package, unchanged) == The stroke-order data Hanzi Writer checks strokes against, derived from the Make Me a Hanzi project (https://github.com/skishore/makemeahanzi) and Arphic's fonts: Arphic PL KaitiM GB and UKai: Copyright 1999 Arphic Technology Co., Ltd. Make Me a Hanzi: Copyright 1999 Arphic Technology Co., Ltd., copyright 2016 Shaunak Kishore. Licensed under the Arphic Public License (1999). Its text is lib/hanzi-writer-data-2.0.1/ARPHICPL.TXT, served unaltered beside the data, with the package's APL/ folder. The package is served verbatim and whole: no character's file is added, removed or changed. == OpenCC 1.4.2 data (npm opencc-data; the page's table of traditional forms) == The table of single traditional forms the Write tab shows as a hint (data/s2t1.txt, embedded in index.html as window.S2T1_DATA) is made from OpenCC's data/STCharacters.txt and data/TWVariants.txt, and is changed from them: only characters with a single traditional form are kept, Taiwan's variant forms are applied (TWVariants.txt), and pairs whose Taiwan form is the simplified character itself, or that have a character outside the Basic Multilingual Plane, are left out. OpenCC: https://github.com/BYVoid/OpenCC OpenCC's licence, in full: Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. "License" shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. "Licensor" shall mean the copyright owner or entity authorized by the copyright owner that is granting the License. "Legal Entity" shall mean the union of the acting entity and all other entities that control, are controlled by, or are under common control with that entity. For the purposes of this definition, "control" means (i) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the outstanding shares, or (iii) beneficial ownership of such entity. "You" (or "Your") shall mean an individual or Legal Entity exercising permissions granted by this License. "Source" form shall mean the preferred form for making modifications, including but not limited to software source code, documentation source, and configuration files. "Object" form shall mean any form resulting from mechanical transformation or translation of a Source form, including but not limited to compiled object code, generated documentation, and conversions to other media types. "Work" shall mean the work of authorship, whether in Source or Object form, made available under the License, as indicated by a copyright notice that is included in or attached to the work (an example is provided in the Appendix below). "Derivative Works" shall mean any work, whether in Source or Object form, that is based on (or derived from) the Work and for which the editorial revisions, annotations, elaborations, or other modifications represent, as a whole, an original work of authorship. For the purposes of this License, Derivative Works shall not include works that remain separable from, or merely link (or bind by name) to the interfaces of, the Work and Derivative Works thereof. "Contribution" shall mean any work of authorship, including the original version of the Work and any modifications or additions to that Work or Derivative Works thereof, that is intentionally submitted to Licensor for inclusion in the Work by the copyright owner or by an individual or Legal Entity authorized to submit on behalf of the copyright owner. For the purposes of this definition, "submitted" means any form of electronic, verbal, or written communication sent to the Licensor or its representatives, including but not limited to communication on electronic mailing lists, source code control systems, and issue tracking systems that are managed by, or on behalf of, the Licensor for the purpose of discussing and improving the Work, but excluding communication that is conspicuously marked or otherwise designated in writing by the copyright owner as "Not a Contribution." "Contributor" shall mean Licensor and any individual or Legal Entity on behalf of whom a Contribution has been received by Licensor and subsequently incorporated within the Work. 2. Grant of Copyright License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, sublicense, and distribute the Work and such Derivative Works in Source or Object form. 3. Grant of Patent License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as stated in this section) patent license to make, have made, use, offer to sell, sell, import, and otherwise transfer the Work, where such license applies only to those patent claims licensable by such Contributor that are necessarily infringed by their Contribution(s) alone or by combination of their Contribution(s) with the Work to which such Contribution(s) was submitted. If You institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Work or a Contribution incorporated within the Work constitutes direct or contributory patent infringement, then any patent licenses granted to You under this License for that Work shall terminate as of the date such litigation is filed. 4. Redistribution. You may reproduce and distribute copies of the Work or Derivative Works thereof in any medium, with or without modifications, and in Source or Object form, provided that You meet the following conditions: 1. You must give any other recipients of the Work or Derivative Works a copy of this License; and 2. You must cause any modified files to carry prominent notices stating that You changed the files; and 3. You must retain, in the Source form of any Derivative Works that You distribute, all copyright, patent, trademark, and attribution notices from the Source form of the Work, excluding those notices that do not pertain to any part of the Derivative Works; and 4. If the Work includes a "NOTICE" text file as part of its distribution, then any Derivative Works that You distribute must include a readable copy of the attribution notices contained within such NOTICE file, excluding those notices that do not pertain to any part of the Derivative Works, in at least one of the following places: within a NOTICE text file distributed as part of the Derivative Works; within the Source form or documentation, if provided along with the Derivative Works; or, within a display generated by the Derivative Works, if and wherever such third-party notices normally appear. The contents of the NOTICE file are for informational purposes only and do not modify the License. You may add Your own attribution notices within Derivative Works that You distribute, alongside or as an addendum to the NOTICE text from the Work, provided that such additional attribution notices cannot be construed as modifying the License. You may add Your own copyright statement to Your modifications and may provide additional or different license terms and conditions for use, reproduction, or distribution of Your modifications, or for any such Derivative Works as a whole, provided Your use, reproduction, and distribution of the Work otherwise complies with the conditions stated in this License. 5. Submission of Contributions. Unless You explicitly state otherwise, any Contribution intentionally submitted for inclusion in the Work by You to the Licensor shall be under the terms and conditions of this License, without any additional terms or conditions. Notwithstanding the above, nothing herein shall supersede or modify the terms of any separate license agreement you may have executed with Licensor regarding such Contributions. 6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing the origin of the Work and reproducing the content of the NOTICE file. 7. Disclaimer of Warranty. Unless required by applicable law or agreed to in writing, Licensor provides the Work (and each Contributor provides its Contributions) on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are solely responsible for determining the appropriateness of using or redistributing the Work and assume any risks associated with Your exercise of permissions under this License. 8. Limitation of Liability. In no event and under no legal theory, whether in tort (including negligence), contract, or otherwise, unless required by applicable law (such as deliberate and grossly negligent acts) or agreed to in writing, shall any Contributor be liable to You for damages, including any direct, indirect, special, incidental, or consequential damages of any character arising as a result of this License or out of the use or inability to use the Work (including but not limited to damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses), even if such Contributor has been advised of the possibility of such damages. 9. Accepting Warranty or Additional Liability. While redistributing the Work or Derivative Works thereof, You may choose to offer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and only if You agree to indemnify, defend, and hold each Contributor harmless for any liability incurred by, or claims asserted against, such Contributor by reason of your accepting any such warranty or additional liability. END OF TERMS AND CONDITIONS