2 papers
eess.AS2026
HPRO: Hierarchical Progressive Reward Optimization via Preference Extraction for Emotional Text-to-Speech
Sihang Nie, Xiaofen Xing, Rui Xing +5
Recently, Large Language Model (LLM)-based Text-to-Speech (TTS) models have achieved remarkable naturalness. However, the standard Supervised Fine-Tuning paradigm often converges t…
cs.SD2025
F5R-TTS: Improving Flow-Matching based Text-to-Speech with Group Relative Policy Optimization
Xiaohui Sun, Ruitong Xiao, Jianye Mo +3
We present F5R-TTS, a novel text-to-speech (TTS) system that integrates Group Relative Policy Optimization (GRPO) into a flow-matching based architecture. By reformulating the dete…