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RealtimeTTS 0.8.0

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@KoljaB KoljaB released this 27 Aug 13:55
v0.8.0
a54c495

RealtimeTTS 0.8.0 adds an optional Higgs Audio streaming client, experimental word-aligned playback callbacks, fragment lookahead for earlier synthesis, and reliability improvements across playback and several engines.

Highlights

  • Added an optional HiggsEngine client for SGLang-Omni Higgs Audio v3 servers.
  • Added experimental, opt-in word alignment and on_word callbacks.
  • Added fragment lookahead using stream2sentence 1.0.4.
  • Added PocketTTS language selection and Qwen pause/resume controls.
  • Improved Kokoro voice caching, validation, language handling, and cleanup.

Notes

HiggsEngine passed protocol-level tests but was not validated against a live server. Forced alignment is disabled by default and remains experimental; slow nonblocking alignment can produce late or missing callbacks.

Fixes

  • Empty synthesis results now fail explicitly.
  • Improved immediate-stop cleanup for blocked audio backends.
  • Prevented stale alignment results from affecting later playback.
  • Fixed PocketTTS GPU state restoration.

Requires Python 3.10–3.14.

Full changes

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