feat(fishaudio): add speed/volume prosody params and default to s2.1-pro#6159
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Expose `speed` and `volume` on `fishaudio.TTS` (and `update_options`), wired into Fish Audio's `prosody` request field. Both default to NOT_GIVEN, so when unset the request omits prosody and is byte-for-byte unchanged. Add `s2.1-pro` to TTSModels and make it the default model.
tinalenguyen
approved these changes
Jun 18, 2026
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Summary
fishaudio.TTSparams (and onupdate_options) wired to Fish Audio'sprosodyrequest field.speedis a rate multiplier (1.0 = normal),volumeis a dB offset (0 = natural). Both default toNOT_GIVEN→prosodystaysnull, so existing requests are byte-for-byte unchanged.TTSModelsand now the plugin default (wass2-pro). Markup/expressive tag injection is unaffected — thes2provider-key check still matchess2.1-pro.Test Plan
uv run pytest --plugin fishaudio— 7 tests (default model, model variants, prosody omitted by default, speed/volume/both,update_optionsplumbing).