fix(cartesia): expand TTS language support and add WebSocket timestamp params#5361
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…p params - Expand TTSLanguages from 7 to 42 languages to match Cartesia TTS API Ref: https://docs.cartesia.ai/api-reference/tts/bytes#body-language - Add `add_phoneme_timestamps` param (WebSocket only) to request phoneme-level timing data from Cartesia Ref: https://docs.cartesia.ai/api-reference/tts/websocket - Add `use_normalized_timestamps` param (WebSocket only) to toggle timestamp normalization in streamed responses Ref: https://docs.cartesia.ai/api-reference/tts/websocket - Handle `phoneme_timestamps` key in WebSocket receive loop to avoid spurious "unexpected message" warnings when the feature is enabled Both new params are exposed on TTS.__init__ and update_options().
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@davidzhao Could you please review my PR when you get a chance? Thanks! |
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Summary
This PR syncs the
livekit-plugins-cartesiaTTS plugin with missing parameters from the latest Cartesia API.Changes
Language support (
models.py)TTSLanguagesfrom 7 languages (en,es,fr,de,pt,zh,ja) to the full 42 languages now supported by the Cartesia TTS APIhi,ko,it,nl,pl,ru,sv,tr,tl,bg,ro,ar,cs,el,fi,hr,ms,sk,da,ta,uk,hu,no,vi,bn,th,he,ka,id,te,gu,kn,ml,mr,or,paWebSocket-only params (
tts.py)add_phoneme_timestamps: bool = False— requests phoneme-level timing data in streamed responses. Sent asadd_phoneme_timestamps: truein the WebSocket payload when enabled.use_normalized_timestamps: bool = False— toggles timestamp normalization in streamed responses.TTS.__init__()andTTS.update_options().WebSocket response handling (
tts.py)phoneme_timestampskey in_recv_taskto avoid spurious"unexpected message"warnings whenadd_phoneme_timestampsis enabled. Phoneme timestamps are received but not currently surfaced through the output emitter (no phoneme-level transcript API exists in the basettsmodule).References