Towards Human-like Multimodal Conversational Agent by Generating
  Engaging Speech
Authors: name: Taesoo Kim; name: Yongsik Jo; name: Hyunmin Song; name: Taehwan Kim
Published: 2025-09-18 05:14:10

Abstract: Human conversation involves language, speech, and visual cues, with each
medium providing complementary information. For instance, speech conveys a vibe
or tone not fully captured by text alone. While multimodal LLMs focus on
generating text responses from diverse inputs, less attention has been paid to
generating natural and engaging speech. We propose a human-like agent that
generates speech responses based on conversation mood and responsive style
information. To achieve this, we build a novel MultiSensory Conversation
dataset focused on speech to enable agents to generate natural speech. We then
propose a multimodal LLM-based model for generating text responses and voice
descriptions, which are used to generate speech covering paralinguistic
information. Experimental results demonstrate the effectiveness of utilizing
both visual and audio modalities in conversation to generate engaging speech.
The source code is available in https://github.com/kimtaesu24/MSenC