VPNet AI — local speech credits (2026-10-05)

Russian: Igor (ru_igor), Silero v5_cis_base_nostress, MIT.
Model: https://models.silero.ai/models/tts/ru/v5_cis_base_nostress.pt
Source: https://github.com/snakers4/silero-models
License: https://github.com/snakers4/silero-models/blob/master/LICENSE_CIS
Russian stress: RUAccent v1 (MIT), https://github.com/Den4ikAI/ruaccent
Denis/Piper remains installed for manual rollback.

Kazakh: Iseke x_low, Piper voice based on KazakhTTS (CC BY 4.0).
Model card: https://huggingface.co/rhasspy/piper-voices/blob/main/kk/kk_KZ/iseke/x_low/MODEL_CARD
Mussakhojayeva, S., Janaliyeva, A., Mirzakhmetov, A., Khassanov, Y., Varol, H.A. (2021).
KazakhTTS: An Open-Source Kazakh Text-to-Speech Synthesis Dataset.
Interspeech 2021, 2786–2790. https://doi.org/10.21437/Interspeech.2021-2124
Institute of Smart Systems and Artificial Intelligence (ISSAI), Nazarbayev University, Kazakhstan.
Source: https://github.com/IS2AI/Kazakh_TTS
License: https://creativecommons.org/licenses/by/4.0/
Use here: speech synthesized from text with the published ONNX model; no retraining.
Generated WAV audio may be converted to MP3/Opus. No endorsement by ISSAI is implied.

English: John medium, Piper voice by Bryce Beattie. Dataset: LibriVox (public domain).
Model card: https://huggingface.co/rhasspy/piper-voices/blob/main/en/en_US/john/medium/MODEL_CARD
Training notes: https://brycebeattie.com/files/tts/

Engine: Piper TTS 1.8.0 (GPL-3.0-or-later), running only on our server.
https://github.com/OHF-Voice/piper1-gpl
https://www.gnu.org/licenses/gpl-3.0.html
Model cards describe dataset licenses; engine and model/data terms are distinct.

MIT License

Copyright (c) 2025-present Silero Team

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.


Copyright 2026 Denis Petrov

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.

Fixed Kazakh welcome recording: generated with VoxCPM1.5 (OpenBMB) and
ErnarBahat/VoxCPM-KazakhTTS-Lora, published under Apache-2.0.
https://huggingface.co/openbmb/VoxCPM1.5
https://huggingface.co/ErnarBahat/VoxCPM-KazakhTTS-Lora
Synthetic reference: Silero ru_igor (MIT). Trimmed leading/trailing silence,
joined phrases and encoded MP3/Opus. All other KK answers use Piper Iseke.