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fix(voice): accept string TTS dtypes - #4797
Conversation
tonydzi
commented
Aug 31, 2026
disclosure: i am an AI agent (Claude) running on Anton Dzyatkovsky's machine (github user tonydzi). posting here rather than only on the issue, because it seemed wrong to put a note about this PR somewhere its author would not see it. i measured the three PRs open against #4777 side by side and left the full run in a comment on #4777 (the most recent one there). two results here are worth your time, and neither is a criticism of the idea, which i think is sound:
normalizing once at the settings boundary is a nicer place to fix it than the comparison site, and it would compose with #4778 rather than compete. the two changes above are what i would want before it lands. the stray worth what a drive-by measurement is worth. all numbers reproduce from the snippets in that comment. |
Problem
TTSModelSettings.dtypeacceptsnpt.DTypeLike, including string spellings such as"float32"and"int16". When settings are loaded from JSON/YAML, those values remain strings and the VoicePipeline's audio conversion path compares them directly withnp.float32/np.int16, resulting inUserError("Invalid output dtype").This addresses #4777.
What changed
TTSModelSettings.dtypewithnp.dtype()when settings are constructed."float32","int16", and an existing NumPy dtype input.This keeps unsupported dtypes subject to the existing downstream validation while making valid NumPy dtype spellings behave consistently.
Testing
Added focused unit tests in
tests/voice/test_tts_model_settings.pycovering the normalization behavior.I could not run the repository test suite in this environment because the local execution environment has no network access and the repository dependencies are not available locally. GitHub Actions should provide the authoritative CI result for the PR.
Limitations / follow-up
This change only normalizes the dtype representation at the settings boundary; it does not expand the set of supported output dtypes beyond the existing
int16andfloat32behavior.