SLAM-Omni: Timbre-Controllable Voice Interaction System with Single-Stage Training
Wenxi Chen, Ziyang Ma, Ruiqi Yan, Yuzhe Liang, Xiquan Li, Ruiyang Xu, Zhikang Niu, Yanqiao Zhu
Abstract
Recent advancements highlight the potential of end-to-end real-time spoken dialogue systems, showcasing their low latency and high quality. In this paper, we introduce SLAM-Omni, a timbre-controllable, end-to-end voice interaction system with single-stage training. SLAM-Omni achieves zero-shot timbre control by modeling spoken language with semantic tokens and decoupling speaker information to a vocoder. By predicting grouped speech semantic tokens at each step, our method significantly reduces the sequence length of audio tokens, accelerating both training and inference. Additionally, we propose historical text prompting to compress dialogue history, facilitating efficient multi-round interactions. Comprehensive evaluations reveal that SLAM-Omni outperforms prior models of similar scale, requiring only 15 hours of training on 4 GPUs with limited data. Notably, it is the first spoken dialogue system to achieve competitive performance with a single-stage training approach, eliminating the need for pre-training on TTS or ASR tasks. Further experiments validate its multilingual and multi-turn dialogue capabilities on larger datasets.
BibTeX
@inproceedings{chen-etal-2025-slam,
title = "{SLAM}-Omni: Timbre-Controllable Voice Interaction System with Single-Stage Training",
author = "Chen, Wenxi and
Ma, Ziyang and
Yan, Ruiqi and
Liang, Yuzhe and
Li, Xiquan and
Xu, Ruiyang and
Niu, Zhikang and
Zhu, Yanqiao and
Yang, Yifan and
Liu, Zhanxun and
Yu, Kai and
Hu, Yuxuan and
Li, Jinyu and
Lu, Yan and
Liu, Shujie and
Chen, Xie",
editor = "Che, Wanxiang and
Nabende, Joyce and
Shutova, Ekaterina and
Pilehvar, Mohammad Taher",
booktitle = "Findings of the Association for Computational Linguistics: ACL 2025",
month = jul,
year = "2025",
address = "Vienna, Austria",
publisher = "Association for Computational Linguistics",
url = "https://aclanthology.org/2025.findings-acl.115/",
doi = "10.18653/v1/2025.findings-acl.115",
pages = "2262--2282",
ISBN = "979-8-89176-256-5"
}