Conversation Playground (new section):
- WhatsApp-style chat UI with user/assistant speech bubbles
- Click-to-record mic button using MediaRecorder API
- STT → LLM streaming → TTS pipeline via SSE (POST /api/conversation/turn)
- LLM tokens stream into assistant bubble in real time
- Audio auto-plays when TTS synthesises the reply
- Right-side stats panel: STT / LLM TTFT / LLM total / TTS / Total with bar chart
- Turn history list with per-turn total time and pass/fail indicator
- Configurable: STT backend, LLM URL + model, TTS backend + voice, system prompt
- Conversation history maintained across turns (last 20 messages sent to LLM)
- GET /api/conversation/llm-models proxies model list from any OpenAI-compatible LLM
XTTS v2 backend:
- Registers xtts as a first-class TTS backend (xtts_url setting, display name,
capabilities, health/voice discovery, OpenAI-compatible generation)
- Added XTTS URL field to Settings → Connections
- Use-as-TTS button now saves to xtts_url (not tts_url)
- Batch benchmark backend select now refreshes alongside perf/preview selectors
VibeVoice fix:
- Added /voices to _TTS_VOICE_ENDPOINTS so VibeVoice voices are discovered
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
mARTin-B78
6a78be7a28