Phonon 31m and its voice catalog: Gradium, Apache License 2.0
https://huggingface.co/gradium/phonon-31m-en
https://huggingface.co/gradium/phonon-voices
https://www.apache.org/licenses/LICENSE-2.0

Pocket TTS (German, French, Spanish, Italian, Dutch, Portuguese): Kyutai
https://github.com/kyutai-labs/pocket-tts
Creative Commons Attribution 4.0: https://creativecommons.org/licenses/by/4.0/
Modified.
Voices: Alba McKenna (CC BY 4.0); VCTK, University of Edinburgh (CC BY 4.0);
CML-TTS (CC BY 4.0); others CC0. https://huggingface.co/kyutai/tts-voices

Runtime: phonon-tts, Gradium, MIT or Apache License 2.0; see LICENSE-MIT and
LICENSE-APACHE in the runtime folder beside this file.