PodAgent: A Comprehensive Framework for Podcast Generation

Yujia Xiao, Lei He, Haohan Guo, Feng-Long Xie, Tan Lee


Abstract
Existing automatic audio generation methods struggle to generate podcast-like audio programs effectively. The key challenges lie in in-depth content generation, appropriate and expressive voice production. This paper proposed PodAgent, a comprehensive framework for creating audio programs. PodAgent 1) generates informative topic-discussion content by designing a Host-Guest-Writer multi-agent collaboration system, 2) builds a voice pool for suitable voice-role matching and 3) utilizes LLM-enhanced speech synthesis method to generate expressive conversational speech. Given the absence of standardized evaluation criteria for podcast-like audio generation, we developed comprehensive assessment guidelines to effectively evaluate the model’s performance. Experimental results demonstrate PodAgent’s effectiveness, significantly surpassing direct GPT-4 generation in topic-discussion dialogue content, achieving an 87.4% voice-matching accuracy, and producing more expressive speech through LLM-guided synthesis. Demo page: https://podcast-agent.github.io/demo/. Source code: https://github.com/yujxx/PodAgent.
Anthology ID:
2025.findings-acl.1226
Volume:
Findings of the Association for Computational Linguistics: ACL 2025
Month:
July
Year:
2025
Address:
Vienna, Austria
Editors:
Wanxiang Che, Joyce Nabende, Ekaterina Shutova, Mohammad Taher Pilehvar
Venue:
Findings
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
23923–23937
Language:
URL:
https://preview.aclanthology.org/display_plenaries/2025.findings-acl.1226/
DOI:
Bibkey:
Cite (ACL):
Yujia Xiao, Lei He, Haohan Guo, Feng-Long Xie, and Tan Lee. 2025. PodAgent: A Comprehensive Framework for Podcast Generation. In Findings of the Association for Computational Linguistics: ACL 2025, pages 23923–23937, Vienna, Austria. Association for Computational Linguistics.
Cite (Informal):
PodAgent: A Comprehensive Framework for Podcast Generation (Xiao et al., Findings 2025)
Copy Citation:
PDF:
https://preview.aclanthology.org/display_plenaries/2025.findings-acl.1226.pdf