PIPER TEXT-TO-SPEECH ENGINE LICENSE INFORMATION

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PROJECT: Piper
REPOSITORY: https://github.com/rhasspy/piper
LICENSE: MIT License
CREATOR: Rhasspy Project
DESCRIPTION: Fast, local neural text-to-speech engine
VERSION PIN: 2023.11.14-2 (Windows release artefact, last confirmed stable)
             Configured in PiperBinaryManager.java as PIPER_VERSION.
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MIT LICENSE TEXT:

Copyright (c) 2022 Michael Hansen

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.

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PIPER VOICE MODELS LICENSE INFORMATION

The voice models used by Piper are derived from multiple sources:

1. LIBRITTS DATASET VOICES
   License: CC BY 4.0 (Creative Commons Attribution 4.0 International)
   Source: https://github.com/google-research-datasets/libritts
   Citation: Zen, Heiga, et al. "LibriTTS: A Corpus Derived from LibriSpeech for
             Text-to-Speech." arXiv preprint arXiv:1904.02882 (2019)
   Attribution: Required (include creator name and dataset reference)
   Commercial Use: YES (with attribution)
   
   Voices included (22 models):
   - English (US): en_US-libritts-high, en_US-ryan-low, en_US-ryan-medium, en_US-ryan-high
   - English (GB): en_GB-alan-low, en_GB-alan-medium, en_GB-sam-medium
   - German: de_DE-eva_k-x-low, de_DE-eva_k-medium, de_DE-karlsson-x-low, de_DE-karlsson-medium
   - French: fr_FR-siwis-low, fr_FR-siwis-medium, fr_FR-gilles-low, fr_FR-gilles-medium
   - Spanish: es_ES-carlosmira-low, es_ES-carlosmira-medium
   - Italian: it_IT-riccardo-x-low, it_IT-riccardo-medium
   - Russian: ru_RU-aidar-low, ru_RU-aidar-medium
   - Dutch: nl_NL-mls_5809-low

2. THORSTEN VOICE (GERMAN)
   License: CC0 (Public Domain) / CC BY 4.0
   Source: https://www.thorsten-voice.de/
   Creator: Thorsten Müller
   GitHub: https://github.com/thorstenMueller/Thorsten-Voice
   Attribution: Required (mention Thorsten Müller)
   Commercial Use: YES

   Voices included (6 models):
   - de_DE-thorsten-medium
   - de_DE-thorsten-high
   - de_DE-bernd-low
   - de_DE-bernd-medium
   - de_DE-pavoque-low
   - de_DE-pavoque-medium

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COMPATIBILITY WITH INTELLIGENT VILLAGERS MOD

✅ FULLY COMPATIBLE

- Piper MIT License is compatible with Apache 2.0 (mod's license)
- Voice models with CC BY 4.0 licenses are compatible with Apache 2.0
- Attribution requirements for voices are satisfied through documentation
- Commercial use is permitted with proper attribution

REQUIRED ATTRIBUTION FOR VOICE MODELS:

"Voice models are derived from:
- LibriTTS (CC BY 4.0): https://github.com/google-research-datasets/libritts
- Thorsten Voice (CC0): https://www.thorsten-voice.de/
- Citation: Zen, Heiga, et al. (2019)"

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REFERENCES

- Piper GitHub: https://github.com/rhasspy/piper
- LibriTTS GitHub: https://github.com/google-research-datasets/libritts
- Thorsten Voice: https://www.thorsten-voice.de/
- CC BY 4.0 License: https://creativecommons.org/licenses/by/4.0/
- CC0 Public Domain: https://creativecommons.org/publicdomain/zero/1.0/
- MIT License: https://opensource.org/licenses/MIT

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END OF PIPER LICENSE INFORMATION
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