The --speed parameter was announced in each language README's
"Update News" entry dated 2025.11.19 and is already parsed by the
example code in every language ({go,rust,java,swift}/example_onnx.*),
but the "Available Arguments" reference table is missing the row in
4 of the 8 language READMEs. The Python, Node.js, C#, and C++ READMEs
already list it.
Add the missing row in each affected table, verbatim with the wording
already used in the other 4 READMEs:
| --speed | float | 1.05 | Speech speed factor (higher = faster, lower = slower) |
Go uses single-dash to match the surrounding rows in its own table.
- README Quick Start: format `duration[0]` instead of the ndarray itself
(numpy refuses `f"{ndarray:.2f}"`; matches official `dur[0]:.2f` pattern)
- py/example_pypi.py: print synthesized duration to mirror the docstring example
- Add `"na"` to AVAILABLE_LANGS / Languages.Available / availableLangs
across all 11 runtimes (Python/Node/Web/Java/C++/C#/Go/Swift/Rust/Flutter/iOS)
so the language-agnostic fallback advertised in the README actually passes
per-runtime lang validation before being sent to the v3 ONNX duration predictor
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>