preprint · arXiv · Oct 15, 2026
JAVIS: Joint Audio-Visual Interaction and Streaming for Real-Time Conversational Agents
Junseok Ahn, Jaehyun Park, Jeongsoo Choi, Joon Son Chung, Ji-Hoon Kim
In plain English
Conversational agents usually generate speech and face separately, or skip the face altogether. This system runs both from one shared LLM through a joint audio-visual representation that then splits into streaming speech and face branches, removing the intermediate hand-off. The authors report initial latency roughly 200 times lower than a strong baseline, though no absolute millisecond figures, plus better lip sync and more appropriate expressions. They also release JAVIS-Syn, a 334-hour synthetic dataset of expressive multi-turn conversations, which addresses a real shortage of training data for audio-visual dialogue.
real-time avatars
latency
conversational ai
lip sync