Response Text Choose Avatar -- Use current avatar -- Sun Yongen Female Base Avatar Female 1 Base Avatar Female 2 Base Avatar Female 3 Base Avatar Female 4 Base Avatar Female 5 Base Avatar Female 6 Base Avatar Female 7 Base Avatar Female 8 Base Avatar Male 1 Base Avatar Male 2 Test Avatar Female Test Avatar Male Voice Emotion (optional) ElevenLabs Voice ID (optional) Delivery Approach a. WebRTC — real-time tracks (existing) b. Combined Chunks — per-chunk MP4 bytes c. Complete Stream — one full MP4 at end Play Response (WebRTC)