App. Res. of Comp. Accepted Paper
Vol. 44, 2027 No. 1

Progressive fine-tuning method for speech Synthesis in Chinese news broadcasting

Guo Zijie1
Li Bicheng1
Huang Liangping1
Liao Yunbao2
1. Huaqiao University College of Computer Science and Technology Xiamen Fujian 361021, China
2. College of Computer & Network Security, Chengdu University of Technology, Chengdu Sichuan 610059, China
DOI: 10.19734/j.issn.1001-3695.2026.05.0136

Abstract

Pre-trained text-to-speech (TTS) models often exhibit mismatched training and inference conditions and insufficient prosodic structure during domain fine-tuning. ProNews-TTS (Progressive News TTS) addresses these issues through three stages. First, condition-alignment fine-tuning reduces the training-inference mismatch. Next, a prosody adapter injects pause and intonation cues. Finally, style contrastive learning enforces speaker-style consistency. Experiments showed that ProNews-TTS achieved a character error rate of 2.58%, a word error rate of 4.68%, a prosody score of 63.25, and a speaker-similarity score of 0.671. Compared with the official CosyVoice2-0.5B baseline, it reduced CER by 6.38 percentage points and WER by 9.16 percentage points, while increasing the prosody score by 8.09 and speaker similarity by 0.015. The third stage updated only 0.642M parameters, approximately 0.1% of the full system. ProNews-TTS achieves joint adaptation of content, prosody, and speaker style with limited parameter updates.

Foundation Support

厦门市科技计划项目(3502Z20241029)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2026.05.0136
Publish at: Application Research of Computers Accepted Paper, Vol. 44, 2027 No. 1

Publish History

[2026-08-28] Accepted Paper

Cite This Article

郭子杰, 李弼程, 黄良平, 等. 面向中文新闻播报场景的渐进式语音合成微调方法 [J]. 计算机应用研究, 2027, 44 (1). (2026-09-14). https://doi.org/10.19734/j.issn.1001-3695.2026.05.0136. (Guo Zijie, Li Bicheng, Huang Liangping, et al. Progressive fine-tuning method for speech Synthesis in Chinese news broadcasting [J]. Application Research of Computers, 2027, 44 (1). (2026-09-14). https://doi.org/10.19734/j.issn.1001-3695.2026.05.0136. )

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  • Application Research of Computers Monthly Journal
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Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

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