StageMaster ships a built-in voice engine. Everything in it is Apache License 2.0.
Nothing here is GPL or LGPL, and espeak-ng is not present in any form.

1. kokoro-coreml — Copyright Jud Rogers and contributors, Apache-2.0.
   https://github.com/Jud/kokoro-coreml at commit 6bfc02afb237a311caee927482e58c028edb6acb
   The Swift engine, the English grapheme-to-phoneme pipeline, and the lexicon files
   us_gold.json and us_silver.json.
   Full text: kokoro-coreml-LICENSE.txt

2. swift-bart-g2p — Copyright Jud Rogers and contributors, Apache-2.0.
   https://github.com/Jud/swift-bart-g2p at tag 0.4.0
   The BART neural fallback that pronounces words the lexicon does not hold.
   Full text: swift-bart-g2p-LICENSE.txt

3. Kokoro-82M — Copyright hexgrad, Apache-2.0.
   https://huggingface.co/hexgrad/Kokoro-82M
   The 82 million parameter model and its 54 voice packs, converted to CoreML and
   palettized to 8 bits by kokoro-coreml, shipped here as Resources/Kokoro.
   Full text: kokoro-82m-LICENSE.txt

4. misaki — Copyright hexgrad, Apache-2.0.
   https://github.com/hexgrad/misaki
   The lexicon data that kokoro-coreml's us_gold.json and us_silver.json come from.
   Full text: misaki-LICENSE.txt
