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f0fcecd7c1
Streams text to the ElevenLabs WebSocket API and plays audio in real-time via AudioTrack (PCM 24kHz). Key design points: - sendText(fullText) takes the full accumulated text and only transmits the new suffix, detecting divergence for restart - Chunks are queued if the WebSocket isn't yet connected; flushed in onOpen - finish() sends EOS to ElevenLabs; deferred if called before onOpen fires - sendText returns true (not false) when finished=true to avoid treating a normal end-of-stream as a diverge restart - finishStreamingTts coroutine uses identity check before nulling streamingTts to prevent a mid-drain restart from orphaning a live TTS session - eleven_v3 does NOT support WebSocket streaming; use eleven_flash_v2_5